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145837432 = 23131402283
BaseRepresentation
bin10001011000101…
…00110101111000
3101011102022100101
420230110311320
5244313244212
622245445144
73420412006
oct1054246570
9334368311
10145837432
1175359904
1240a107b4
13242a2350
1415523a76
15cc0b157
hex8b14d78

145837432 has 16 divisors (see below), whose sum is σ = 294479640. Its totient is φ = 67309536.

The previous prime is 145837427. The next prime is 145837481. The reversal of 145837432 is 234738541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145837391 and 145837400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701038 + ... + 701245.

Almost surely, 2145837432 is an apocalyptic number.

It is an amenable number.

145837432 is an abundant number, since it is smaller than the sum of its proper divisors (148642208).

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

145837432 is a wasteful number, since it uses less digits than its factorization.

145837432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402302 (or 1402298 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 145837432 is about 12076.3169882212. The cubic root of 145837432 is about 526.3682309304.

The spelling of 145837432 in words is "one hundred forty-five million, eight hundred thirty-seven thousand, four hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 1402283 2804566 5609132 11218264 18229679 36459358 72918716 145837432