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155386152 = 233216712923
BaseRepresentation
bin10010100001100…
…00000100101000
3101211101102201200
421100300010220
5304234324102
623230244200
73564521565
oct1120600450
9354342650
10155386152
117a790a09
1244056660
132626668c
14168cb86c
15d99551c
hex9430128

155386152 has 48 divisors (see below), whose sum is σ = 423390240. Its totient is φ = 51481248.

The previous prime is 155386129. The next prime is 155386159. The reversal of 155386152 is 251683551.

It is a happy number.

155386152 is a `hidden beast` number, since 1 + 5 + 5 + 38 + 615 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (155386159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5563 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (8820630).

Almost surely, 2155386152 is an apocalyptic number.

155386152 is a gapful number since it is divisible by the number (12) 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 155386152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211695120).

155386152 is an abundant number, since it is smaller than the sum of its proper divisors (268004088).

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

155386152 is a wasteful number, since it uses less digits than its factorization.

155386152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102 (or 13095 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 155386152 is about 12465.3981885859. The cubic root of 155386152 is about 537.6142487986.

The spelling of 155386152 in words is "one hundred fifty-five million, three hundred eighty-six thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 167 334 501 668 1002 1336 1503 2004 3006 4008 6012 12024 12923 25846 38769 51692 77538 103384 116307 155076 232614 310152 465228 930456 2158141 4316282 6474423 8632564 12948846 17265128 19423269 25897692 38846538 51795384 77693076 155386152