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149548880 = 24513143797
BaseRepresentation
bin10001110100111…
…10111101010000
3101102101212111102
420322132331100
5301241031010
622501203532
73464100365
oct1072367520
9342355442
10149548880
1177464318
12421005a8
1324ca1780
1415c0c46c
15d1e0ba5
hex8e9ef50

149548880 has 40 divisors (see below), whose sum is σ = 374449992. Its totient is φ = 55217664.

The previous prime is 149548873. The next prime is 149548909. The reversal of 149548880 is 88845941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5740816 + 143808064 = 2396^2 + 11992^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 70859 + ... + 72938.

Almost surely, 2149548880 is an apocalyptic number.

149548880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149548880 is an abundant number, since it is smaller than the sum of its proper divisors (224901112).

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

149548880 is a wasteful number, since it uses less digits than its factorization.

149548880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143823 (or 143817 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 149548880 is about 12229.0179491241. The cubic root of 149548880 is about 530.7960980158.

The spelling of 149548880 in words is "one hundred forty-nine million, five hundred forty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 143797 287594 575188 718985 1150376 1437970 1869361 2300752 2875940 3738722 5751880 7477444 9346805 11503760 14954888 18693610 29909776 37387220 74774440 149548880