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120255317 = 7131321487
BaseRepresentation
bin1110010101011…
…11001101010101
322101021121021122
413022233031111
5221241132232
615533253325
72660103410
oct712571525
9271247248
10120255317
1161976666
1234334245
131bbb61c0
1411d84b77
15a856312
hex72af355

120255317 has 8 divisors (see below), whose sum is σ = 148006656. Its totient is φ = 95146992.

The previous prime is 120255299. The next prime is 120255323. The reversal of 120255317 is 713552021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120255317 - 214 = 120238933 is a prime.

It is a super-2 number, since 2×1202553172 = 28922682533540978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120225317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660653 + ... + 660834.

It is an arithmetic number, because the mean of its divisors is an integer number (18500832).

Almost surely, 2120255317 is an apocalyptic number.

It is an amenable number.

120255317 is a deficient number, since it is larger than the sum of its proper divisors (27751339).

120255317 is a wasteful number, since it uses less digits than its factorization.

120255317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321507.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 120255317 is about 10966.0985313830. The cubic root of 120255317 is about 493.5919814369.

The spelling of 120255317 in words is "one hundred twenty million, two hundred fifty-five thousand, three hundred seventeen".

Divisors: 1 7 13 91 1321487 9250409 17179331 120255317