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155150816 = 256121303
BaseRepresentation
bin10010011111101…
…10100111100000
3101210221110220112
421033312213200
5304204311231
623221230452
73562521512
oct1117664740
9353843815
10155150816
117a640117
1243b62428
13261b3522
1416869bb2
15d94a92b
hex93f69e0

155150816 has 36 divisors (see below), whose sum is σ = 310781016. Its totient is φ = 76245120.

The previous prime is 155150813. The next prime is 155150819. The reversal of 155150816 is 618051551.

It is an interprime number because it is at equal distance from previous prime (155150813) and next prime (155150819).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155150813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118421 + ... + 119723.

It is an arithmetic number, because the mean of its divisors is an integer number (8632806).

Almost surely, 2155150816 is an apocalyptic number.

155150816 is a gapful number since it is divisible by the number (16) 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 155150816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155390508).

155150816 is an abundant number, since it is smaller than the sum of its proper divisors (155630200).

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

155150816 is an equidigital number, since it uses as much as digits as its factorization.

155150816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

The square root of 155150816 is about 12455.9550416658. The cubic root of 155150816 is about 537.3427018352.

The spelling of 155150816 in words is "one hundred fifty-five million, one hundred fifty thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 32 61 122 244 488 976 1303 1952 2606 3721 5212 7442 10424 14884 20848 29768 41696 59536 79483 119072 158966 317932 635864 1271728 2543456 4848463 9696926 19393852 38787704 77575408 155150816