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142980556 = 22293139761
BaseRepresentation
bin10001000010110…
…11010111001100
3100222001011110011
420201123113030
5243100334211
622104323004
73354212635
oct1041332714
9328034404
10142980556
1173788454
123ba73464
1323811ba4
1414dbc88c
15c844921
hex885b5cc

142980556 has 24 divisors (see below), whose sum is σ = 267200640. Its totient is φ = 66796800.

The previous prime is 142980517. The next prime is 142980577. The reversal of 142980556 is 655089241.

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 7 ways as a sum of consecutive naturals, for example, 16285 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (11133360).

Almost surely, 2142980556 is an apocalyptic number.

It is an amenable number.

142980556 is a deficient number, since it is larger than the sum of its proper divisors (124220084).

142980556 is a wasteful number, since it uses less digits than its factorization.

142980556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39825 (or 39823 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 142980556 is about 11957.4477209813. The cubic root of 142980556 is about 522.9084507195.

The spelling of 142980556 in words is "one hundred forty-two million, nine hundred eighty thousand, five hundred fifty-six".

Divisors: 1 2 4 29 31 58 62 116 124 899 1798 3596 39761 79522 159044 1153069 1232591 2306138 2465182 4612276 4930364 35745139 71490278 142980556