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145004637 = 31916315607
BaseRepresentation
bin10001010010010…
…01100001011101
3101002211222222010
420221021201131
5244110122022
622215541433
73410343021
oct1051114135
9332758863
10145004637
1174940148
124068a879
132407027b
1415388381
15cae450c
hex8a4985d

145004637 has 16 divisors (see below), whose sum is σ = 204776960. Its totient is φ = 91014192.

The previous prime is 145004633. The next prime is 145004653. The reversal of 145004637 is 736400541.

It is not a de Polignac number, because 145004637 - 22 = 145004633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145004633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1488 + ... + 17094.

It is an arithmetic number, because the mean of its divisors is an integer number (12798560).

Almost surely, 2145004637 is an apocalyptic number.

It is an amenable number.

145004637 is a deficient number, since it is larger than the sum of its proper divisors (59772323).

145004637 is a wasteful number, since it uses less digits than its factorization.

145004637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15792.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 145004637 is about 12041.7871181980. The cubic root of 145004637 is about 525.3643873935.

The spelling of 145004637 in words is "one hundred forty-five million, four thousand, six hundred thirty-seven".

Divisors: 1 3 19 57 163 489 3097 9291 15607 46821 296533 889599 2543941 7631823 48334879 145004637