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152077920 = 25351718637
BaseRepresentation
bin10010001000010…
…00011001100000
3101121011100200120
421010020121200
5302412443140
623031320240
73524432601
oct1104103140
9347140616
10152077920
1178931435
1242b20080
1325678947
14162a9da8
15d5401d0
hex9108660

152077920 has 96 divisors (see below), whose sum is σ = 507251808. Its totient is φ = 38166528.

The previous prime is 152077901. The next prime is 152077927. The reversal of 152077920 is 29770251.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152077927) 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, 1159 + ... + 17478.

It is an arithmetic number, because the mean of its divisors is an integer number (5283873).

Almost surely, 2152077920 is an apocalyptic number.

152077920 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 152077920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253625904).

152077920 is an abundant number, since it is smaller than the sum of its proper divisors (355173888).

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

152077920 is a wasteful number, since it uses less digits than its factorization.

152077920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18672 (or 18664 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 152077920 is about 12331.9876743370. The cubic root of 152077920 is about 533.7715079626.

The spelling of 152077920 in words is "one hundred fifty-two million, seventy-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 160 170 204 240 255 272 340 408 480 510 544 680 816 1020 1360 1632 2040 2720 4080 8160 18637 37274 55911 74548 93185 111822 149096 186370 223644 279555 298192 316829 372740 447288 559110 596384 633658 745480 894576 950487 1118220 1267316 1490960 1584145 1789152 1900974 2236440 2534632 2981920 3168290 3801948 4472880 4752435 5069264 6336580 7603896 8945760 9504870 10138528 12673160 15207792 19009740 25346320 30415584 38019480 50692640 76038960 152077920