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149567980 = 2259118209
BaseRepresentation
bin10001110101000…
…11100111101100
3101102102211200211
420322203213230
5301242133410
622501432204
73464210152
oct1072434754
9342384624
10149567980
1177477701
124210b664
1324caa383
1415c153d2
15d1e668a
hex8ea39ec

149567980 has 24 divisors (see below), whose sum is σ = 314475840. Its totient is φ = 59754240.

The previous prime is 149567933. The next prime is 149568007. The reversal of 149567980 is 89765941.

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, 14116 + ... + 22324.

It is an arithmetic number, because the mean of its divisors is an integer number (13103160).

Almost surely, 2149567980 is an apocalyptic number.

149567980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149567980 is an abundant number, since it is smaller than the sum of its proper divisors (164907860).

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

149567980 is a wasteful number, since it uses less digits than its factorization.

149567980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9129 (or 9127 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 149567980 is about 12229.7988536198. The cubic root of 149567980 is about 530.8186943600.

The spelling of 149567980 in words is "one hundred forty-nine million, five hundred sixty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 911 1822 3644 4555 8209 9110 16418 18220 32836 41045 82090 164180 7478399 14956798 29913596 37391995 74783990 149567980