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155997048 = 2336779601
BaseRepresentation
bin10010100110001…
…01001101111000
3101212112110201110
421103011031320
5304413401143
623251320320
73602644614
oct1123051570
9355473643
10155997048
1180068989
12442b00a0
132641b75c
1416a0a344
15da66533
hex94c5378

155997048 has 32 divisors (see below), whose sum is σ = 390609360. Its totient is φ = 51916800.

The previous prime is 155997047. The next prime is 155997071. The reversal of 155997048 is 840799551.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 155996988 and 155997006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155997047) 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, 11448 + ... + 21048.

Almost surely, 2155997048 is an apocalyptic number.

It is an amenable number.

155997048 is an abundant number, since it is smaller than the sum of its proper divisors (234612312).

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

155997048 is a wasteful number, since it uses less digits than its factorization.

155997048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287 (or 10283 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 155997048 is about 12489.8778216602. The cubic root of 155997048 is about 538.3178656224.

The spelling of 155997048 in words is "one hundred fifty-five million, nine hundred ninety-seven thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 677 1354 2031 2708 4062 5416 8124 9601 16248 19202 28803 38404 57606 76808 115212 230424 6499877 12999754 19499631 25999508 38999262 51999016 77998524 155997048