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151028901 = 33172931123
BaseRepresentation
bin10010000000010…
…00010010100101
3101112012001201000
421000020102211
5302130411101
622553023513
73512503332
oct1100102245
9345161630
10151028901
1178285281
12426b4b99
132539c31a
14160b5989
15d3d4486
hex90084a5

151028901 has 32 divisors (see below), whose sum is σ = 237928320. Its totient is φ = 94355712.

The previous prime is 151028887. The next prime is 151028951. The reversal of 151028901 is 109820151.

It is a de Polignac number, because none of the positive numbers 2k-151028901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151028951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133926 + ... + 135048.

It is an arithmetic number, because the mean of its divisors is an integer number (7435260).

Almost surely, 2151028901 is an apocalyptic number.

It is an amenable number.

151028901 is a deficient number, since it is larger than the sum of its proper divisors (86899419).

151028901 is a wasteful number, since it uses less digits than its factorization.

151028901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 151028901 is about 12289.3816361931. The cubic root of 151028901 is about 532.5413734963.

The spelling of 151028901 in words is "one hundred fifty-one million, twenty-eight thousand, nine hundred one".

Divisors: 1 3 9 17 27 51 153 293 459 879 1123 2637 3369 4981 7911 10107 14943 19091 30321 44829 57273 134487 171819 329039 515457 987117 2961351 5593663 8884053 16780989 50342967 151028901