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120072115 = 5191263917
BaseRepresentation
bin1110010100000…
…10011110110011
322100221021222101
413022002132303
5221214301430
615525321231
72655411322
oct712023663
9270837871
10120072115
1161860a59
1234266217
131bb509b7
1411d380b9
15a81bdca
hex72827b3

120072115 has 8 divisors (see below), whose sum is σ = 151670160. Its totient is φ = 91001952.

The previous prime is 120072109. The next prime is 120072137. The reversal of 120072115 is 511270021.

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 120072115 - 29 = 120071603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 120072092 and 120072101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631864 + ... + 632053.

It is an arithmetic number, because the mean of its divisors is an integer number (18958770).

Almost surely, 2120072115 is an apocalyptic number.

120072115 is a deficient number, since it is larger than the sum of its proper divisors (31598045).

120072115 is a wasteful number, since it uses less digits than its factorization.

120072115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263941.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 120072115 is about 10957.7422400785. The cubic root of 120072115 is about 493.3412011264.

The spelling of 120072115 in words is "one hundred twenty million, seventy-two thousand, one hundred fifteen".

Divisors: 1 5 19 95 1263917 6319585 24014423 120072115