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142472408 = 23132105379
BaseRepresentation
bin10000111110111…
…11010011011000
3100221002100101212
420133133103120
5242433104113
622045402252
73346665311
oct1037372330
9327070355
10142472408
11734706a1
123b869388
1323694800
1414cc9608
15c7940a8
hex87df4d8

142472408 has 24 divisors (see below), whose sum is σ = 289268100. Its totient is φ = 65755872.

The previous prime is 142472399. The next prime is 142472411. The reversal of 142472408 is 804274241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51338 + ... + 54041.

Almost surely, 2142472408 is an apocalyptic number.

It is an amenable number.

142472408 is an abundant number, since it is smaller than the sum of its proper divisors (146795692).

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

142472408 is a wasteful number, since it uses less digits than its factorization.

142472408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105411 (or 105394 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 142472408 is about 11936.1806286601. The cubic root of 142472408 is about 522.2882491705.

The spelling of 142472408 in words is "one hundred forty-two million, four hundred seventy-two thousand, four hundred eight".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 105379 210758 421516 843032 1369927 2739854 5479708 10959416 17809051 35618102 71236204 142472408