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153157920 = 25352313873
BaseRepresentation
bin10010010000100…
…00000100100000
3101200012020011120
421020100010200
5303202023140
623110412240
73536551356
oct1110200440
9350166146
10153157920
11794a98a3
1243361080
13259663b6
14164ab7d6
15d6a51d0
hex9210120

153157920 has 96 divisors (see below), whose sum is σ = 503459712. Its totient is φ = 39063552.

The previous prime is 153157891. The next prime is 153157931. The reversal of 153157920 is 29751351.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4104 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (5244372).

Almost surely, 2153157920 is an apocalyptic number.

153157920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153157920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251729856).

153157920 is an abundant number, since it is smaller than the sum of its proper divisors (350301792).

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

153157920 is a wasteful number, since it uses less digits than its factorization.

153157920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914 (or 13906 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 153157920 is about 12375.6987681504. The cubic root of 153157920 is about 535.0320765698.

The spelling of 153157920 in words is "one hundred fifty-three million, one hundred fifty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 32 40 46 48 60 69 80 92 96 115 120 138 160 184 230 240 276 345 368 460 480 552 690 736 920 1104 1380 1840 2208 2760 3680 5520 11040 13873 27746 41619 55492 69365 83238 110984 138730 166476 208095 221968 277460 319079 332952 416190 443936 554920 638158 665904 832380 957237 1109840 1276316 1331808 1595395 1664760 1914474 2219680 2552632 3190790 3329520 3828948 4786185 5105264 6381580 6659040 7657896 9572370 10210528 12763160 15315792 19144740 25526320 30631584 38289480 51052640 76578960 153157920