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142160656 = 2411807731
BaseRepresentation
bin10000111100100…
…11001100010000
3100220111111202111
420132103030100
5242343120111
622034555104
73344226361
oct1036231420
9326444674
10142160656
1173278450
123b738a94
13235b5941
1414c47b68
15c731a21
hex8793310

142160656 has 20 divisors (see below), whose sum is σ = 300476304. Its totient is φ = 64618400.

The previous prime is 142160651. The next prime is 142160659. The reversal of 142160656 is 656061241.

It is a super-2 number, since 2×1421606562 = 40419304228700672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142160651) by changing a digit.

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, 403690 + ... + 404041.

Almost surely, 2142160656 is an apocalyptic number.

142160656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142160656 is an abundant number, since it is smaller than the sum of its proper divisors (158315648).

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

142160656 is a wasteful number, since it uses less digits than its factorization.

142160656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807750 (or 807744 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 142160656 is about 11923.1143582539. The cubic root of 142160656 is about 521.9070214064.

The spelling of 142160656 in words is "one hundred forty-two million, one hundred sixty thousand, six hundred fifty-six".

Divisors: 1 2 4 8 11 16 22 44 88 176 807731 1615462 3230924 6461848 8885041 12923696 17770082 35540164 71080328 142160656