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235032138 = 23311395677
BaseRepresentation
bin11100000001001…
…00111001001010
3121101020212111000
432000210321022
5440132012023
635153315430
75552511615
oct1600447112
9541225430
10235032138
11110740140
1266865b76
1339901893
142330117c
1515979243
hexe024e4a

235032138 has 32 divisors (see below), whose sum is σ = 569776320. Its totient is φ = 71221680.

The previous prime is 235032137. The next prime is 235032167. The reversal of 235032138 is 831230532.

235032138 is a `hidden beast` number, since 23 + 503 + 2 + 138 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (235032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197245 + ... + 198432.

It is an arithmetic number, because the mean of its divisors is an integer number (17805510).

Almost surely, 2235032138 is an apocalyptic number.

235032138 is an abundant number, since it is smaller than the sum of its proper divisors (334744182).

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

235032138 is a wasteful number, since it uses less digits than its factorization.

235032138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395699 (or 395693 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 235032138 is about 15330.7579069008. The cubic root of 235032138 is about 617.1287090286.

The spelling of 235032138 in words is "two hundred thirty-five million, thirty-two thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 395677 791354 1187031 2374062 3561093 4352447 7122186 8704894 10683279 13057341 21366558 26114682 39172023 78344046 117516069 235032138