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142020976 = 2445719423
BaseRepresentation
bin10000111011100…
…01000101110000
3100220020102011011
420131301011300
5242324132401
622032000304
73343105216
oct1035610560
9326212134
10142020976
1173192509
123b690094
13235671a6
1414c0ccb6
15c705451
hex8771170

142020976 has 20 divisors (see below), whose sum is σ = 275781952. Its totient is φ = 70851456.

The previous prime is 142020943. The next prime is 142020979. The reversal of 142020976 is 679020241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142020979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400 + ... + 17023.

Almost surely, 2142020976 is an apocalyptic number.

142020976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142020976 is a deficient number, since it is larger than the sum of its proper divisors (133760976).

142020976 is a wasteful number, since it uses less digits than its factorization.

142020976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19888 (or 19882 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 142020976 is about 11917.2553887210. The cubic root of 142020976 is about 521.7360320863.

The spelling of 142020976 in words is "one hundred forty-two million, twenty thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 457 914 1828 3656 7312 19423 38846 77692 155384 310768 8876311 17752622 35505244 71010488 142020976