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149400056 = 23132110503
BaseRepresentation
bin10001110011110…
…10100111111000
3101102010022100102
420321322213320
5301221300211
622454054532
73462610451
oct1071724770
9342108312
10149400056
1177372523
124204a448
1324c4bb00
1415bb0128
15d1b1a3b
hex8e7a9f8

149400056 has 24 divisors (see below), whose sum is σ = 303333480. Its totient is φ = 68953248.

The previous prime is 149400049. The next prime is 149400073. The reversal of 149400056 is 650004941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53900 + ... + 56603.

It is an arithmetic number, because the mean of its divisors is an integer number (12638895).

Almost surely, 2149400056 is an apocalyptic number.

It is an amenable number.

149400056 is an abundant number, since it is smaller than the sum of its proper divisors (153933424).

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

149400056 is a wasteful number, since it uses less digits than its factorization.

149400056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110535 (or 110518 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 149400056 is about 12222.9315632544. The cubic root of 149400056 is about 530.6199651530.

Adding to 149400056 its reverse (650004941), we get a palindrome (799404997).

The spelling of 149400056 in words is "one hundred forty-nine million, four hundred thousand, fifty-six".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 110503 221006 442012 884024 1436539 2873078 5746156 11492312 18675007 37350014 74700028 149400056