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30696146 = 2132197461
BaseRepresentation
bin111010100011…
…0001011010010
32010202112012022
41311012023102
530324234041
63013531442
7521625065
oct165061322
963675168
1030696146
1116366518
12a343b82
136489b00
1441108dc
152a6524b
hex1d462d2

30696146 has 24 divisors (see below), whose sum is σ = 50220324. Its totient is φ = 14064960.

The previous prime is 30696143. The next prime is 30696151. The reversal of 30696146 is 64169603.

It can be written as a sum of positive squares in 6 ways, for example, as 10491121 + 20205025 = 3239^2 + 4495^2 .

It is a super-5 number, since 5×306961465 (a number of 39 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (30696143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66356 + ... + 66816.

Almost surely, 230696146 is an apocalyptic number.

30696146 is a deficient number, since it is larger than the sum of its proper divisors (19524178).

30696146 is a wasteful number, since it uses less digits than its factorization.

30696146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30696146 is about 5540.4102736169. The cubic root of 30696146 is about 313.1083267151.

The spelling of 30696146 in words is "thirty million, six hundred ninety-six thousand, one hundred forty-six".

Divisors: 1 2 13 26 169 197 338 394 461 922 2561 5122 5993 11986 33293 66586 77909 90817 155818 181634 1180621 2361242 15348073 30696146