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7961242107 = 371349958441
BaseRepresentation
bin1110110101000011…
…01110100111111011
3202112211111000001210
413122201232213323
5112301034221412
63353553014203
7401200304250
oct73241564773
922484430053
107961242107
113415a06035
121662254363
1399b4c2a60
14557499427
15318de183c
hex1da86e9fb

7961242107 has 32 divisors (see below), whose sum is σ = 13091008000. Its totient is φ = 4190849280.

The previous prime is 7961242049. The next prime is 7961242123. The reversal of 7961242107 is 7012421697.

It is not a de Polignac number, because 7961242107 - 227 = 7827024379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (7961241107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107007 + ... + 165447.

It is an arithmetic number, because the mean of its divisors is an integer number (409094000).

Almost surely, 27961242107 is an apocalyptic number.

7961242107 is a deficient number, since it is larger than the sum of its proper divisors (5129765893).

7961242107 is a wasteful number, since it uses less digits than its factorization.

7961242107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58963.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 7961242107 is about 89225.7928348076. The cubic root of 7961242107 is about 1996.7649456163.

The spelling of 7961242107 in words is "seven billion, nine hundred sixty-one million, two hundred forty-two thousand, one hundred seven".

Divisors: 1 3 7 13 21 39 91 273 499 1497 3493 6487 10479 19461 45409 58441 136227 175323 409087 759733 1227261 2279199 5318131 15954393 29162059 87486177 204134413 379106767 612403239 1137320301 2653747369 7961242107