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149792940 = 223251175653
BaseRepresentation
bin10001110110110…
…10100010101100
3101102212021021200
420323122202230
5301321333230
622510325500
73466135053
oct1073324254
9342767250
10149792940
1177610720
12421b9890
132505889b
1415c7339a
15d23d160
hex8eda8ac

149792940 has 72 divisors (see below), whose sum is σ = 495685008. Its totient is φ = 36312960.

The previous prime is 149792939. The next prime is 149792969. The reversal of 149792940 is 49297941.

It is a happy number.

149792940 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35847 + ... + 39806.

It is an arithmetic number, because the mean of its divisors is an integer number (6884514).

Almost surely, 2149792940 is an apocalyptic number.

149792940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149792940 is an abundant number, since it is smaller than the sum of its proper divisors (345892068).

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

149792940 is a wasteful number, since it uses less digits than its factorization.

149792940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75679 (or 75674 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 149792940 is about 12238.9926056028. The cubic root of 149792940 is about 531.0846896957.

The spelling of 149792940 in words is "one hundred forty-nine million, seven hundred ninety-two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 75653 151306 226959 302612 378265 453918 680877 756530 832183 907836 1134795 1361754 1513060 1664366 2269590 2496549 2723508 3328732 3404385 4160915 4539180 4993098 6808770 7489647 8321830 9986196 12482745 13617540 14979294 16643660 24965490 29958588 37448235 49930980 74896470 149792940