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70105600056 = 23319433575357
BaseRepresentation
bin100000101001010011…
…1101001000000111000
320200221210001110220210
41001102213221000320
52122034013200211
652112302151120
75031165524352
oct1012247510070
9220853043823
1070105600056
1127805868a48
12117062824a0
1367c329c0ab
143570a640d2
151c54a1e9a6
hex10529e9038

70105600056 has 64 divisors (see below), whose sum is σ = 188778902400. Its totient is φ = 21623753088.

The previous prime is 70105600051. The next prime is 70105600091. The reversal of 70105600056 is 65000650107.

It is a junction number, because it is equal to n+sod(n) for n = 70105599996 and 70105600032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70105600051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768071 + ... + 1807286.

It is an arithmetic number, because the mean of its divisors is an integer number (2949670350).

Almost surely, 270105600056 is an apocalyptic number.

70105600056 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

70105600056 is an abundant number, since it is smaller than the sum of its proper divisors (118673302344).

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

70105600056 is a wasteful number, since it uses less digits than its factorization.

70105600056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575428 (or 3575424 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The spelling of 70105600056 in words is "seventy billion, one hundred five million, six hundred thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 19 24 38 43 57 76 86 114 129 152 172 228 258 344 456 516 817 1032 1634 2451 3268 4902 6536 9804 19608 3575357 7150714 10726071 14301428 21452142 28602856 42904284 67931783 85808568 135863566 153740351 203795349 271727132 307480702 407590698 461221053 543454264 614961404 815181396 922442106 1229922808 1630362792 1844884212 2921066669 3689768424 5842133338 8763200007 11684266676 17526400014 23368533352 35052800028 70105600056