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145868056 = 23118715361
BaseRepresentation
bin10001011000111…
…00010100011000
3101011110212100121
420230130110120
5244320234211
622250243024
73420600205
oct1054342430
9334425317
10145868056
117537a914
1240a26474
13242b3279
1415530cac
15cc15271
hex8b1c518

145868056 has 16 divisors (see below), whose sum is σ = 273750840. Its totient is φ = 72867840.

The previous prime is 145868029. The next prime is 145868069. The reversal of 145868056 is 650868541.

It is a super-2 number, since 2×1458680562 = 42554979522438272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1816 + ... + 17176.

Almost surely, 2145868056 is an apocalyptic number.

It is an amenable number.

145868056 is a deficient number, since it is larger than the sum of its proper divisors (127882784).

145868056 is a wasteful number, since it uses less digits than its factorization.

145868056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16554 (or 16550 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 145868056 is about 12077.5848579093. The cubic root of 145868056 is about 526.4050718894.

The spelling of 145868056 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, fifty-six".

Divisors: 1 2 4 8 1187 2374 4748 9496 15361 30722 61444 122888 18233507 36467014 72934028 145868056