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15703125940 = 225785156297
BaseRepresentation
bin11101001111111101…
…01010111110110100
31111112101012110011001
432213332222332310
5224130000012230
611114112253044
71064065240165
oct164776527664
944471173131
1015703125940
116729006a37
123062b41184
1316334111c8
14a8d77376c
1561d9030ca
hex3a7faafb4

15703125940 has 12 divisors (see below), whose sum is σ = 32976564516. Its totient is φ = 6281250368.

The previous prime is 15703125901. The next prime is 15703125941. The reversal of 15703125940 is 4952130751.

It can be written as a sum of positive squares in 2 ways, for example, as 10837226404 + 4865899536 = 104102^2 + 69756^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15703125940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15703125941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392578129 + ... + 392578168.

It is an arithmetic number, because the mean of its divisors is an integer number (2748047043).

Almost surely, 215703125940 is an apocalyptic number.

15703125940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15703125940 is an abundant number, since it is smaller than the sum of its proper divisors (17273438576).

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

15703125940 is a wasteful number, since it uses less digits than its factorization.

15703125940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785156306 (or 785156304 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 15703125940 in words is "fifteen billion, seven hundred three million, one hundred twenty-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 785156297 1570312594 3140625188 3925781485 7851562970 15703125940