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149680554 = 2324946759
BaseRepresentation
bin10001110101111…
…11000110101010
3101102122120010020
420322333012222
5301304234204
622504101310
73465156312
oct1072770652
9342576106
10149680554
1177544241
1242164836
132501969a
1415c44442
15d219bd9
hex8ebf1aa

149680554 has 8 divisors (see below), whose sum is σ = 299361120. Its totient is φ = 49893516.

The previous prime is 149680547. The next prime is 149680579. The reversal of 149680554 is 455086941.

It is a sphenic number, since it is the product of 3 distinct primes.

149680554 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12473374 + ... + 12473385.

It is an arithmetic number, because the mean of its divisors is an integer number (37420140).

Almost surely, 2149680554 is an apocalyptic number.

149680554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

149680554 is a wasteful number, since it uses less digits than its factorization.

149680554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24946764.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 149680554 is about 12234.4004348395. The cubic root of 149680554 is about 530.9518364890.

The spelling of 149680554 in words is "one hundred forty-nine million, six hundred eighty thousand, five hundred fifty-four".

Divisors: 1 2 3 6 24946759 49893518 74840277 149680554