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30996102554 = 215498051277
BaseRepresentation
bin11100110111100000…
…101111110110011010
32222000011122011012022
4130313200233312122
51001440000240204
622123414014442
72145053344634
oct346740576632
988004564168
1030996102554
111216654568a
126010647422
132bcc8692b1
14170085da54
15c162da5be
hex73782fd9a

30996102554 has 4 divisors (see below), whose sum is σ = 46494153834. Its totient is φ = 15498051276.

The previous prime is 30996102551. The next prime is 30996102581. The reversal of 30996102554 is 45520169903.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18515861329 + 12480241225 = 136073^2 + 111715^2 .

It is not an unprimeable number, because it can be changed into a prime (30996102551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7749025637 + ... + 7749025640.

Almost surely, 230996102554 is an apocalyptic number.

30996102554 is a deficient number, since it is larger than the sum of its proper divisors (15498051280).

30996102554 is a wasteful number, since it uses less digits than its factorization.

30996102554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15498051279.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 30996102554 in words is "thirty billion, nine hundred ninety-six million, one hundred two thousand, five hundred fifty-four".

Divisors: 1 2 15498051277 30996102554