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149054240 = 2551949031
BaseRepresentation
bin10001110001001…
…10001100100000
3101101110201222102
420320212030200
5301124213430
622442425532
73456640316
oct1070461440
9341421872
10149054240
1177156725
1241b022a8
1324b5a59a
1415b200b6
15d144345
hex8e26320

149054240 has 48 divisors (see below), whose sum is σ = 370681920. Its totient is φ = 56482560.

The previous prime is 149054239. The next prime is 149054261. The reversal of 149054240 is 42450941.

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, 21476 + ... + 27555.

It is an arithmetic number, because the mean of its divisors is an integer number (7722540).

Almost surely, 2149054240 is an apocalyptic number.

149054240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149054240 is an abundant number, since it is smaller than the sum of its proper divisors (221627680).

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

149054240 is a wasteful number, since it uses less digits than its factorization.

149054240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49065 (or 49057 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 149054240 is about 12208.7771705441. Note that the first 3 decimals coincide. The cubic root of 149054240 is about 530.2102405494.

The spelling of 149054240 in words is "one hundred forty-nine million, fifty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 49031 98062 196124 245155 392248 490310 784496 931589 980620 1568992 1863178 1961240 3726356 3922480 4657945 7452712 7844960 9315890 14905424 18631780 29810848 37263560 74527120 149054240