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149734740 = 22357135149
BaseRepresentation
bin10001110110011…
…00010101010100
3101102202022110010
420323030111110
5301313002430
622505200220
73465503301
oct1073142524
9342668403
10149734740
1177580a21
1242190070
132503824c
1415c5a0a8
15d22acb0
hex8ecc554

149734740 has 48 divisors (see below), whose sum is σ = 425174400. Its totient is φ = 39365760.

The previous prime is 149734733. The next prime is 149734769. The reversal of 149734740 is 47437941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13315 + ... + 21834.

It is an arithmetic number, because the mean of its divisors is an integer number (8857800).

Almost surely, 2149734740 is an apocalyptic number.

149734740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149734740 is an abundant number, since it is smaller than the sum of its proper divisors (275439660).

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

149734740 is a wasteful number, since it uses less digits than its factorization.

149734740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35232 (or 35230 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 149734740 is about 12236.6147279384. The cubic root of 149734740 is about 531.0158988859.

The spelling of 149734740 in words is "one hundred forty-nine million, seven hundred thirty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 71 142 213 284 355 426 710 852 1065 1420 2130 4260 35149 70298 105447 140596 175745 210894 351490 421788 527235 702980 1054470 2108940 2495579 4991158 7486737 9982316 12477895 14973474 24955790 29946948 37433685 49911580 74867370 149734740