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142756654 = 2439162593
BaseRepresentation
bin10001000001001…
…00101100101110
3100221121210022111
420200210230232
5243021203104
622055434234
73352261105
oct1040445456
9327553274
10142756654
1173645207
123b98597a
1323763cc1
1414d6103c
15c7ed404
hex8824b2e

142756654 has 8 divisors (see below), whose sum is σ = 214624080. Its totient is φ = 71215296.

The previous prime is 142756637. The next prime is 142756681. The reversal of 142756654 is 456657241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1427566542 = 40758924522551432, 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, 80419 + ... + 82174.

It is an arithmetic number, because the mean of its divisors is an integer number (26828010).

Almost surely, 2142756654 is an apocalyptic number.

142756654 is a deficient number, since it is larger than the sum of its proper divisors (71867426).

142756654 is a wasteful number, since it uses less digits than its factorization.

142756654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163034.

The product of its digits is 201600, while the sum is 40.

The square root of 142756654 is about 11948.0816033370. The cubic root of 142756654 is about 522.6353566737.

It can be divided in two parts, 1427 and 56654, that added together give a square (58081 = 2412).

The spelling of 142756654 in words is "one hundred forty-two million, seven hundred fifty-six thousand, six hundred fifty-four".

Divisors: 1 2 439 878 162593 325186 71378327 142756654