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1238016 = 21031331
BaseRepresentation
bin100101110010000000000
32022220020110
410232100000
5304104031
642311320
713344243
oct4562000
92286213
101238016
1177615a
124b8540
13344670
1424325a
15196c46
hex12e400

1238016 has 88 divisors (see below), whose sum is σ = 3668224. Its totient is φ = 368640.

The previous prime is 1237993. The next prime is 1238023. The reversal of 1238016 is 6108321.

1238016 = T83 + T84 + ... + T199.

It is a junction number, because it is equal to n+sod(n) for n = 1237983 and 1238001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39921 + ... + 39951.

21238016 is an apocalyptic number.

1238016 is a gapful number since it is divisible by the number (16) 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 1238016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1834112).

1238016 is an abundant number, since it is smaller than the sum of its proper divisors (2430208).

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

1238016 is a wasteful number, since it uses less digits than its factorization.

1238016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1238016 is about 1112.6616736457. The cubic root of 1238016 is about 107.3763785357.

The spelling of 1238016 in words is "one million, two hundred thirty-eight thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 64 78 93 96 104 124 128 156 186 192 208 248 256 312 372 384 403 416 496 512 624 744 768 806 832 992 1024 1209 1248 1488 1536 1612 1664 1984 2418 2496 2976 3072 3224 3328 3968 4836 4992 5952 6448 6656 7936 9672 9984 11904 12896 13312 15872 19344 19968 23808 25792 31744 38688 39936 47616 51584 77376 95232 103168 154752 206336 309504 412672 619008 1238016