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30494961 = 34753783
BaseRepresentation
bin111010001010…
…1000011110001
32010101022020000
41310111003301
530301314321
63005340213
7520126410
oct164250361
963338200
1030494961
1116239352
12a267669
136419373
14409b477
152a25826
hex1d150f1

30494961 has 20 divisors (see below), whose sum is σ = 52062912. Its totient is φ = 17425368.

The previous prime is 30494951. The next prime is 30494969. The reversal of 30494961 is 16949403.

It is not a de Polignac number, because 30494961 - 26 = 30494897 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30494969) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26325 + ... + 27458.

Almost surely, 230494961 is an apocalyptic number.

It is an amenable number.

30494961 is a deficient number, since it is larger than the sum of its proper divisors (21567951).

30494961 is an equidigital number, since it uses as much as digits as its factorization.

30494961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53802 (or 53793 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30494961 is about 5522.2242801248. The cubic root of 30494961 is about 312.4227811341.

The spelling of 30494961 in words is "thirty million, four hundred ninety-four thousand, nine hundred sixty-one".

Divisors: 1 3 7 9 21 27 63 81 189 567 53783 161349 376481 484047 1129443 1452141 3388329 4356423 10164987 30494961