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97831038 = 2319858167
BaseRepresentation
bin1011101010011…
…00100001111110
320211002022221210
411311030201332
5200021043123
613412505250
72265356454
oct565144176
9224068853
1097831038
115024a9a8
122891b226
13173644b6
14cdc89d4
1588c6e93
hex5d4c87e

97831038 has 16 divisors (see below), whose sum is σ = 205960320. Its totient is φ = 30893976.

The previous prime is 97831031. The next prime is 97831049. The reversal of 97831038 is 83013879.

It is a junction number, because it is equal to n+sod(n) for n = 97830987 and 97831005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97831031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428970 + ... + 429197.

It is an arithmetic number, because the mean of its divisors is an integer number (12872520).

Almost surely, 297831038 is an apocalyptic number.

97831038 is an abundant number, since it is smaller than the sum of its proper divisors (108129282).

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

97831038 is a wasteful number, since it uses less digits than its factorization.

97831038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858191.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 97831038 is about 9890.9573854102. The cubic root of 97831038 is about 460.7785146986.

The spelling of 97831038 in words is "ninety-seven million, eight hundred thirty-one thousand, thirty-eight".

Divisors: 1 2 3 6 19 38 57 114 858167 1716334 2574501 5149002 16305173 32610346 48915519 97831038