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97838015 = 5113157383
BaseRepresentation
bin1011101010011…
…10001110111111
320211002200112012
411311032032333
5200021304030
613413001435
72265416012
oct565161677
9224080465
1097838015
1150255170
122892327b
1317367722
14cdcb379
1588c9095
hex5d4e3bf

97838015 has 16 divisors (see below), whose sum is σ = 132212736. Its totient is φ = 68858400.

The previous prime is 97838003. The next prime is 97838051. The reversal of 97838015 is 51083879.

It is a happy number.

It is not a de Polignac number, because 97838015 - 218 = 97575871 is a prime.

It is a Duffinian number.

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, 26987 + ... + 30396.

It is an arithmetic number, because the mean of its divisors is an integer number (8263296).

Almost surely, 297838015 is an apocalyptic number.

97838015 is a deficient number, since it is larger than the sum of its proper divisors (34374721).

97838015 is a wasteful number, since it uses less digits than its factorization.

97838015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57430.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 97838015 is about 9891.3100750103. The cubic root of 97838015 is about 460.7894681933.

The spelling of 97838015 in words is "ninety-seven million, eight hundred thirty-eight thousand, fifteen".

Divisors: 1 5 11 31 55 155 341 1705 57383 286915 631213 1778873 3156065 8894365 19567603 97838015