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30976984428 = 22313198570413
BaseRepresentation
bin11100110110010111…
…110100010101101100
32221221211122212001120
4130312113310111230
51001420102000203
622121452140540
72144432010645
oct346627642554
987854585046
1030976984428
1112156777985
126006167750
132bc89043b0
1416dc0c46cc
15c147b0b53
hex7365f456c

30976984428 has 24 divisors (see below), whose sum is σ = 77839602288. Its totient is φ = 9531379776.

The previous prime is 30976984421. The next prime is 30976984429. The reversal of 30976984428 is 82448967903.

It is not an unprimeable number, because it can be changed into a prime (30976984421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99285051 + ... + 99285362.

It is an arithmetic number, because the mean of its divisors is an integer number (3243316762).

Almost surely, 230976984428 is an apocalyptic number.

It is an amenable number.

30976984428 is an abundant number, since it is smaller than the sum of its proper divisors (46862617860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30976984428 is a wasteful number, since it uses less digits than its factorization.

30976984428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198570433 (or 198570431 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 30976984428 in words is "thirty billion, nine hundred seventy-six million, nine hundred eighty-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 198570413 397140826 595711239 794281652 1191422478 2382844956 2581415369 5162830738 7744246107 10325661476 15488492214 30976984428