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142474506 = 2329818819
BaseRepresentation
bin10000111110111…
…11110100001010
3100221002110021120
420133133310022
5242433141011
622045420110
73350004366
oct1037376412
9327073246
10142474506
1173472229
123b86a636
1323695755
1414cca2a6
15c794a06
hex87dfd0a

142474506 has 16 divisors (see below), whose sum is σ = 294775200. Its totient is φ = 45853808.

The previous prime is 142474499. The next prime is 142474511. The reversal of 142474506 is 605474241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409236 + ... + 409583.

It is an arithmetic number, because the mean of its divisors is an integer number (18423450).

Almost surely, 2142474506 is an apocalyptic number.

142474506 is an abundant number, since it is smaller than the sum of its proper divisors (152300694).

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

142474506 is a wasteful number, since it uses less digits than its factorization.

142474506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818853.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 142474506 is about 11936.2685123953. The cubic root of 142474506 is about 522.2908128373.

The spelling of 142474506 in words is "one hundred forty-two million, four hundred seventy-four thousand, five hundred six".

Divisors: 1 2 3 6 29 58 87 174 818819 1637638 2456457 4912914 23745751 47491502 71237253 142474506