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155425368 = 23371994649
BaseRepresentation
bin10010100001110…
…01101001011000
3101211110102112010
421100321221120
5304242102433
623231145520
73565044120
oct1120715130
9354412463
10155425368
117a80841a
12440752a0
132627b497
14168dbc80
15d9a1e63
hex9439a58

155425368 has 64 divisors (see below), whose sum is σ = 446400000. Its totient is φ = 44174592.

The previous prime is 155425367. The next prime is 155425379. The reversal of 155425368 is 863524551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155425363) 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, 31108 + ... + 35756.

It is an arithmetic number, because the mean of its divisors is an integer number (6975000).

Almost surely, 2155425368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155425368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223200000).

155425368 is an abundant number, since it is smaller than the sum of its proper divisors (290974632).

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

155425368 is a wasteful number, since it uses less digits than its factorization.

155425368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864 (or 4860 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 155425368 is about 12466.9710836273. The cubic root of 155425368 is about 537.6594722773.

It can be divided in two parts, 15542 and 5368, that added together give a triangular number (20910 = T204).

The spelling of 155425368 in words is "one hundred fifty-five million, four hundred twenty-five thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 199 398 597 796 1194 1393 1592 2388 2786 4179 4649 4776 5572 8358 9298 11144 13947 16716 18596 27894 32543 33432 37192 55788 65086 97629 111576 130172 195258 260344 390516 781032 925151 1850302 2775453 3700604 5550906 6476057 7401208 11101812 12952114 19428171 22203624 25904228 38856342 51808456 77712684 155425368