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153155420 = 225112632647
BaseRepresentation
bin10010010000011…
…11011101011100
3101200012002201222
421020033131130
5303201433140
623110352512
73536541155
oct1110173534
9350162658
10153155420
11794a7a30
124335b738
1325965212
14164aa92c
15d6a45b5
hex920f75c

153155420 has 48 divisors (see below), whose sum is σ = 352332288. Its totient is φ = 55460160.

The previous prime is 153155399. The next prime is 153155423. The reversal of 153155420 is 24551351.

153155420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 153155420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153155423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56537 + ... + 59183.

It is an arithmetic number, because the mean of its divisors is an integer number (7340256).

Almost surely, 2153155420 is an apocalyptic number.

153155420 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 153155420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176166144).

153155420 is an abundant number, since it is smaller than the sum of its proper divisors (199176868).

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

153155420 is a wasteful number, since it uses less digits than its factorization.

153155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2928 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 153155420 is about 12375.5977633406. The cubic root of 153155420 is about 535.0291654406.

The spelling of 153155420 in words is "one hundred fifty-three million, one hundred fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 263 526 1052 1315 2630 2647 2893 5260 5294 5786 10588 11572 13235 14465 26470 28930 29117 52940 57860 58234 116468 145585 291170 582340 696161 1392322 2784644 3480805 6961610 7657771 13923220 15315542 30631084 38288855 76577710 153155420