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149143212 = 223212732621
BaseRepresentation
bin10001110001110…
…11111010101100
3101101122021000200
420320323322230
5301140040322
622444353500
73460460601
oct1070737254
9341567020
10149143212
1177207559
1241b45890
1324b8bc2a
1415b446a8
15d1608ac
hex8e3beac

149143212 has 36 divisors (see below), whose sum is σ = 379981056. Its totient is φ = 49321440.

The previous prime is 149143187. The next prime is 149143229. The reversal of 149143212 is 212341941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11739 + ... + 20882.

Almost surely, 2149143212 is an apocalyptic number.

149143212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149143212 is an abundant number, since it is smaller than the sum of its proper divisors (230837844).

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

149143212 is a wasteful number, since it uses less digits than its factorization.

149143212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32758 (or 32753 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 149143212 is about 12212.4203989217. The cubic root of 149143212 is about 530.3157155372.

The spelling of 149143212 in words is "one hundred forty-nine million, one hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 127 254 381 508 762 1143 1524 2286 4572 32621 65242 97863 130484 195726 293589 391452 587178 1174356 4142867 8285734 12428601 16571468 24857202 37285803 49714404 74571606 149143212