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235147028 = 223112291543
BaseRepresentation
bin11100000010000…
…00111100010100
3121101110201002012
432001000330110
5440144201103
635200003352
75553500564
oct1601007424
9541421065
10235147028
11110809496
1266900558
1339941c6c
1423330da4
151599d2d8
hexe040f14

235147028 has 24 divisors (see below), whose sum is σ = 425402880. Its totient is φ = 113614560.

The previous prime is 235147027. The next prime is 235147057. The reversal of 235147028 is 820741532.

It is a junction number, because it is equal to n+sod(n) for n = 235146985 and 235147003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235147027) 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, 151625 + ... + 153167.

It is an arithmetic number, because the mean of its divisors is an integer number (17725120).

Almost surely, 2235147028 is an apocalyptic number.

It is an amenable number.

235147028 is a deficient number, since it is larger than the sum of its proper divisors (190255852).

235147028 is a wasteful number, since it uses less digits than its factorization.

235147028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 235147028 is about 15334.5044915054. The cubic root of 235147028 is about 617.2292489919.

The spelling of 235147028 in words is "two hundred thirty-five million, one hundred forty-seven thousand, twenty-eight".

Divisors: 1 2 4 31 62 124 1229 1543 2458 3086 4916 6172 38099 47833 76198 95666 152396 191332 1896347 3792694 7585388 58786757 117573514 235147028