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142465620 = 223511215857
BaseRepresentation
bin10000111110111…
…01101001010100
3100221002000002110
420133131221110
5242432344440
622045311020
73346636443
oct1037355124
9327060073
10142465620
1173466590
123b865470
13236916ab
1414cc6d5a
15c792080
hex87dda54

142465620 has 48 divisors (see below), whose sum is σ = 435169728. Its totient is φ = 34536960.

The previous prime is 142465613. The next prime is 142465621. The reversal of 142465620 is 26564241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142465621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107269 + ... + 108588.

It is an arithmetic number, because the mean of its divisors is an integer number (9066036).

Almost surely, 2142465620 is an apocalyptic number.

142465620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142465620 is an abundant number, since it is smaller than the sum of its proper divisors (292704108).

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

142465620 is a wasteful number, since it uses less digits than its factorization.

142465620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215880 (or 215878 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 142465620 is about 11935.8962797102. The cubic root of 142465620 is about 522.2799543505.

The spelling of 142465620 in words is "one hundred forty-two million, four hundred sixty-five thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 215857 431714 647571 863428 1079285 1295142 2158570 2374427 2590284 3237855 4317140 4748854 6475710 7123281 9497708 11872135 12951420 14246562 23744270 28493124 35616405 47488540 71232810 142465620