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30655199 = 1713912973
BaseRepresentation
bin111010011110…
…0001011011111
32010200110000202
41310330023133
530321431244
63013014115
7521364521
oct164741337
963613022
1030655199
1116338783
12a32433b
136474293
1440dda11
152a5804e
hex1d3c2df

30655199 has 8 divisors (see below), whose sum is σ = 32694480. Its totient is φ = 28642176.

The previous prime is 30655181. The next prime is 30655223. The reversal of 30655199 is 99155603.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30655199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30655099) 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, 4124 + ... + 8849.

It is an arithmetic number, because the mean of its divisors is an integer number (4086810).

Almost surely, 230655199 is an apocalyptic number.

30655199 is a deficient number, since it is larger than the sum of its proper divisors (2039281).

30655199 is a wasteful number, since it uses less digits than its factorization.

30655199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13129.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 30655199 is about 5536.7137365047. The cubic root of 30655199 is about 312.9690415678.

The spelling of 30655199 in words is "thirty million, six hundred fifty-five thousand, one hundred ninety-nine".

Divisors: 1 17 139 2363 12973 220541 1803247 30655199