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120725001 = 3213413889
BaseRepresentation
bin1110011001000…
…01111000001001
322102011110120100
413030201320021
5221401200001
615551320013
72664100635
oct714417011
9272143510
10120725001
1162167531
1234520009
131c01bc17
1412067dc5
15a8ea586
hex7321e09

120725001 has 6 divisors (see below), whose sum is σ = 174380570. Its totient is φ = 80483328.

The previous prime is 120724957. The next prime is 120725023. The reversal of 120725001 is 100527021.

It can be written as a sum of positive squares in only one way, i.e., 91011600 + 29713401 = 9540^2 + 5451^2 .

It is not a de Polignac number, because 120725001 - 27 = 120724873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120725051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6706936 + ... + 6706953.

Almost surely, 2120725001 is an apocalyptic number.

It is an amenable number.

120725001 is a deficient number, since it is larger than the sum of its proper divisors (53655569).

120725001 is a wasteful number, since it uses less digits than its factorization.

120725001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413895 (or 13413892 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 120725001 is about 10987.4929351513. The cubic root of 120725001 is about 494.2337578700.

The spelling of 120725001 in words is "one hundred twenty million, seven hundred twenty-five thousand, one".

Divisors: 1 3 9 13413889 40241667 120725001