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120828051 = 3337791531
BaseRepresentation
bin1110011001110…
…11000010010011
322102100200221000
413030323002103
5221412444201
615553433043
72665010241
oct714730223
9272320830
10120828051
11622279a3
123456b783
131c056ab6
1412093791
15a91ad86
hex733b093

120828051 has 32 divisors (see below), whose sum is σ = 186291200. Its totient is φ = 77332320.

The previous prime is 120828031. The next prime is 120828073. The reversal of 120828051 is 150828021.

It is not a de Polignac number, because 120828051 - 27 = 120827923 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120828031) 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, 78156 + ... + 79686.

It is an arithmetic number, because the mean of its divisors is an integer number (5821600).

Almost surely, 2120828051 is an apocalyptic number.

120828051 is a deficient number, since it is larger than the sum of its proper divisors (65463149).

120828051 is a wasteful number, since it uses less digits than its factorization.

120828051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656 (or 1650 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 120828051 is about 10992.1813576742. The cubic root of 120828051 is about 494.3743426807.

The spelling of 120828051 in words is "one hundred twenty million, eight hundred twenty-eight thousand, fifty-one".

Divisors: 1 3 9 27 37 79 111 237 333 711 999 1531 2133 2923 4593 8769 13779 26307 41337 56647 78921 120949 169941 362847 509823 1088541 1529469 3265623 4475113 13425339 40276017 120828051