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51151353032 = 23132712332287
BaseRepresentation
bin101111101000110110…
…111011010011001000
311220000211021222001202
4233220312323103020
51314224221244112
635255411003332
73460402220063
oct575066732310
9156024258052
1051151353032
111a76967268a
129ab6599548
134a92460900
1426935d98da
1514e59c16c2
hexbe8dbb4c8

51151353032 has 96 divisors (see below), whose sum is σ = 105814874880. Its totient is φ = 23165775360.

The previous prime is 51151353017. The next prime is 51151353041. The reversal of 51151353032 is 23035315115.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51151352986 and 51151353004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22364993 + ... + 22367279.

It is an arithmetic number, because the mean of its divisors is an integer number (1102238280).

Almost surely, 251151353032 is an apocalyptic number.

51151353032 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51151353032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52907437440).

51151353032 is an abundant number, since it is smaller than the sum of its proper divisors (54663521848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51151353032 is a wasteful number, since it uses less digits than its factorization.

51151353032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 51151353032 its reverse (23035315115), we get a palindrome (74186668147).

The spelling of 51151353032 in words is "fifty-one billion, one hundred fifty-one million, three hundred fifty-three thousand, thirty-two".

Divisors: 1 2 4 8 13 26 52 71 104 142 169 233 284 338 466 568 676 923 932 1352 1846 1864 2287 3029 3692 4574 6058 7384 9148 11999 12116 16543 18296 23998 24232 29731 33086 39377 47996 59462 66172 78754 95992 118924 132344 157508 162377 215059 237848 315016 324754 386503 430118 532871 649508 773006 860236 1065742 1299016 1546012 1720472 2110901 2131484 2795767 3092024 4221802 4262968 5591534 6927323 8443604 11183068 13854646 16887208 22366136 27441713 27709292 37833841 54883426 55418584 75667682 90055199 109766852 151335364 180110398 219533704 302670728 360220796 491839933 720441592 983679866 1967359732 3934719464 6393919129 12787838258 25575676516 51151353032