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102996815 = 5191084177
BaseRepresentation
bin1100010001110…
…01101101001111
321011210210001212
412020321231033
5202331344230
614115325035
72360313155
oct610715517
9234723055
10102996815
1153159039
122a5b077b
131845287c
14d9713d5
159097895
hex6239b4f

102996815 has 8 divisors (see below), whose sum is σ = 130101360. Its totient is φ = 78060672.

The previous prime is 102996799. The next prime is 102996821. The reversal of 102996815 is 518699201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102996815 - 24 = 102996799 is a prime.

It is a congruent number.

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, 541994 + ... + 542183.

It is an arithmetic number, because the mean of its divisors is an integer number (16262670).

Almost surely, 2102996815 is an apocalyptic number.

102996815 is a deficient number, since it is larger than the sum of its proper divisors (27104545).

102996815 is a wasteful number, since it uses less digits than its factorization.

102996815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084201.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 102996815 is about 10148.7346501916. The cubic root of 102996815 is about 468.7499830519.

The spelling of 102996815 in words is "one hundred two million, nine hundred ninety-six thousand, eight hundred fifteen".

Divisors: 1 5 19 95 1084177 5420885 20599363 102996815