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120512097 = 3331143981
BaseRepresentation
bin1110010111011…
…01111001100001
322101202122112000
413023231321201
5221322341342
615542554213
72662223136
oct713557141
9271678460
10120512097
1162031582
1234438969
131bc76044
141201058d
15a8a744c
hex72ede61

120512097 has 16 divisors (see below), whose sum is σ = 184296960. Its totient is φ = 77749200.

The previous prime is 120511991. The next prime is 120512107. The reversal of 120512097 is 790215021.

It is not a de Polignac number, because 120512097 - 27 = 120511969 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 120512097.

It is not an unprimeable number, because it can be changed into a prime (120513097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71154 + ... + 72827.

It is an arithmetic number, because the mean of its divisors is an integer number (11518560).

Almost surely, 2120512097 is an apocalyptic number.

It is an amenable number.

120512097 is a deficient number, since it is larger than the sum of its proper divisors (63784863).

120512097 is a wasteful number, since it uses less digits than its factorization.

120512097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144021 (or 144015 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 120512097 is about 10977.8001894733. The cubic root of 120512097 is about 493.9430523830.

The spelling of 120512097 in words is "one hundred twenty million, five hundred twelve thousand, ninety-seven".

Divisors: 1 3 9 27 31 93 279 837 143981 431943 1295829 3887487 4463411 13390233 40170699 120512097