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70530674928 = 2437857244939
BaseRepresentation
bin100000110101111110…
…1001011000011110000
320202001101220112000120
41001223331023003300
52123421323044203
652222405050240
75044546562610
oct1015375130360
9222041815016
1070530674928
1127a037aaa9a
12118046b6980
13686037c99c
1435b12b4a40
151c7bed7b53
hex106bf4b0f0

70530674928 has 80 divisors (see below), whose sum is σ = 208477251840. Its totient is φ = 20128025088.

The previous prime is 70530674833. The next prime is 70530674939. The reversal of 70530674928 is 82947603507.

It is a super-2 number, since 2×705306749282 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165483 + ... + 410421.

It is an arithmetic number, because the mean of its divisors is an integer number (2605965648).

Almost surely, 270530674928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70530674928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104238625920).

70530674928 is an abundant number, since it is smaller than the sum of its proper divisors (137946576912).

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

70530674928 is a wasteful number, since it uses less digits than its factorization.

70530674928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245814 (or 245808 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 70530674928 in words is "seventy billion, five hundred thirty million, six hundred seventy-four thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 857 1714 2571 3428 5142 5999 6856 10284 11998 13712 17997 20568 23996 35994 41136 47992 71988 95984 143976 244939 287952 489878 734817 979756 1469634 1714573 1959512 2939268 3429146 3919024 5143719 5878536 6858292 10287438 11757072 13716584 20574876 27433168 41149752 82299504 209912723 419825446 629738169 839650892 1259476338 1469389061 1679301784 2518952676 2938778122 3358603568 4408167183 5037905352 5877556244 8816334366 10075810704 11755112488 17632668732 23510224976 35265337464 70530674928