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30490612 = 2243269659
BaseRepresentation
bin111010001001…
…1111111110100
32010101002020221
41310103333310
530301144422
63005304124
7520110625
oct164237764
963332227
1030490612
1116236059
12a265044
1364173a9
144099a4c
152a243c7
hex1d13ff4

30490612 has 24 divisors (see below), whose sum is σ = 54885600. Its totient is φ = 14812896.

The previous prime is 30490591. The next prime is 30490637. The reversal of 30490612 is 21609403.

It is a congruent number.

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, 45939 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (2286900).

Almost surely, 230490612 is an apocalyptic number.

It is an amenable number.

30490612 is a deficient number, since it is larger than the sum of its proper divisors (24394988).

30490612 is a wasteful number, since it uses less digits than its factorization.

30490612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 30490612 is about 5521.8304935954. The cubic root of 30490612 is about 312.4079285024.

The spelling of 30490612 in words is "thirty million, four hundred ninety thousand, six hundred twelve".

Divisors: 1 2 4 43 86 172 269 538 659 1076 1318 2636 11567 23134 28337 46268 56674 113348 177271 354542 709084 7622653 15245306 30490612