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145832031 = 3297167047
BaseRepresentation
bin10001011000100…
…11100001011111
3101011102000221100
420230103201133
5244313111111
622245404143
73420360162
oct1054234137
9334360840
10145832031
1175355844
1240a09653
132429ca57
1415521ad9
15cc09756
hex8b1385f

145832031 has 12 divisors (see below), whose sum is σ = 212819152. Its totient is φ = 96218496.

The previous prime is 145832003. The next prime is 145832033. The reversal of 145832031 is 130238541.

It is a happy number.

145832031 is a `hidden beast` number, since 1 + 458 + 3 + 203 + 1 = 666.

145832031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-145832031 is a prime.

It is a super-2 number, since 2×1458320312 = 42533962531169922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145831986 and 145832004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145832033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82651 + ... + 84396.

Almost surely, 2145832031 is an apocalyptic number.

145832031 is a deficient number, since it is larger than the sum of its proper divisors (66987121).

145832031 is a wasteful number, since it uses less digits than its factorization.

145832031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167150 (or 167147 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 145832031 is about 12076.0933666480. The cubic root of 145832031 is about 526.3617329418.

It can be divided in two parts, 1458 and 32031, that added together give a square (33489 = 1832).

The spelling of 145832031 in words is "one hundred forty-five million, eight hundred thirty-two thousand, thirty-one".

Divisors: 1 3 9 97 291 873 167047 501141 1503423 16203559 48610677 145832031