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155801048 = 23133114817
BaseRepresentation
bin10010100100101…
…01010111011000
3101212011111212012
421102111113120
5304341113143
623243205052
73601200314
oct1122252730
9355144765
10155801048
117aa446a7
1244216788
1326380490
1416998b44
15da28418
hex94955d8

155801048 has 32 divisors (see below), whose sum is σ = 315675360. Its totient is φ = 71662080.

The previous prime is 155801047. The next prime is 155801077. The reversal of 155801048 is 840108551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155801047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29936 + ... + 34752.

It is an arithmetic number, because the mean of its divisors is an integer number (9864855).

Almost surely, 2155801048 is an apocalyptic number.

It is an amenable number.

155801048 is an abundant number, since it is smaller than the sum of its proper divisors (159874312).

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

155801048 is a wasteful number, since it uses less digits than its factorization.

155801048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5143 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 155801048 is about 12482.0290017288. The cubic root of 155801048 is about 538.0923175051.

Adding to 155801048 its reverse (840108551), we get a palindrome (995909599).

The spelling of 155801048 in words is "one hundred fifty-five million, eight hundred one thousand, forty-eight".

Divisors: 1 2 4 8 13 26 52 104 311 622 1244 2488 4043 4817 8086 9634 16172 19268 32344 38536 62621 125242 250484 500968 1498087 2996174 5992348 11984696 19475131 38950262 77900524 155801048