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155076768 = 2535721137
BaseRepresentation
bin10010011111001…
…00100010100000
3101210210201100000
421033210202200
5304144424033
623215500000
73562062600
oct1117444240
9353721300
10155076768
117a59a520
1243b27600
1326188902
141684ac00
15d933a13
hex93e48a0

155076768 has 432 divisors, whose sum is σ = 596048544. Its totient is φ = 39191040.

The previous prime is 155076751. The next prime is 155076773. The reversal of 155076768 is 867670551.

It is a tau number, because it is divible by the number of its divisors (432).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4191246 + ... + 4191282.

It is an arithmetic number, because the mean of its divisors is an integer number (1379742).

Almost surely, 2155076768 is an apocalyptic number.

155076768 is a gapful number since it is divisible by the number (18) 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 155076768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298024272).

155076768 is an abundant number, since it is smaller than the sum of its proper divisors (440971776).

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

155076768 is a wasteful number, since it uses less digits than its factorization.

155076768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 155076768 is about 12452.9822934107. The cubic root of 155076768 is about 537.2572033397.

The spelling of 155076768 in words is "one hundred fifty-five million, seventy-six thousand, seven hundred sixty-eight".