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30495849 = 329714937
BaseRepresentation
bin111010001010…
…1010001101001
32010101100102220
41310111101221
530301331344
63005344253
7520132116
oct164252151
963340386
1030495849
1116239a8a
12a268089
1364198a7
14409b90d
152a25c19
hex1d15469

30495849 has 16 divisors (see below), whose sum is σ = 42664320. Its totient is φ = 19349120.

The previous prime is 30495827. The next prime is 30495851. The reversal of 30495849 is 94859403.

It is a cyclic number.

It is not a de Polignac number, because 30495849 - 27 = 30495721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30495849.

It is not an unprimeable number, because it can be changed into a prime (30495859) 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, 3709 + ... + 8645.

It is an arithmetic number, because the mean of its divisors is an integer number (2666520).

Almost surely, 230495849 is an apocalyptic number.

It is an amenable number.

30495849 is a deficient number, since it is larger than the sum of its proper divisors (12168471).

30495849 is a wasteful number, since it uses less digits than its factorization.

30495849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 30495849 is about 5522.3046819240. The cubic root of 30495849 is about 312.4258136432.

The spelling of 30495849 in words is "thirty million, four hundred ninety-five thousand, eight hundred forty-nine".

Divisors: 1 3 29 71 87 213 2059 4937 6177 14811 143173 350527 429519 1051581 10165283 30495849