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141809512 = 23131780209
BaseRepresentation
bin10000111001111…
…01011101101000
3100212211200002011
420130331131220
5242300401022
622023245304
73341234545
oct1034753550
9325750064
10141809512
1173058649
123b5a9834
13234c1b70
1414b95bcc
15c6b2977
hex873d768

141809512 has 32 divisors (see below), whose sum is σ = 303193800. Its totient is φ = 61599744.

The previous prime is 141809489. The next prime is 141809527. The reversal of 141809512 is 215908141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 82919236 + 58890276 = 9106^2 + 7674^2 .

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, 38337 + ... + 41872.

Almost surely, 2141809512 is an apocalyptic number.

It is an amenable number.

141809512 is an abundant number, since it is smaller than the sum of its proper divisors (161384288).

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

141809512 is a wasteful number, since it uses less digits than its factorization.

141809512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80245 (or 80241 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 141809512 is about 11908.3799066036. The cubic root of 141809512 is about 521.4769548827.

The spelling of 141809512 in words is "one hundred forty-one million, eight hundred nine thousand, five hundred twelve".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 80209 160418 320836 641672 1042717 1363553 2085434 2727106 4170868 5454212 8341736 10908424 17726189 35452378 70904756 141809512