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30947901276 = 2233183193283
BaseRepresentation
bin11100110100101000…
…110111111101011100
32221212210221021110210
4130310220313331130
51001340130320101
622114532532420
72143626551265
oct346450677534
987783837423
1030947901276
1112141313316
125bb8481110
132bc2890826
1416d82b396c
15c11e687d6
hex734a37f5c

30947901276 has 24 divisors (see below), whose sum is σ = 74541182464. Its totient is φ = 9983193840.

The previous prime is 30947901263. The next prime is 30947901317. The reversal of 30947901276 is 67210974903.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 41596270 + ... + 41597013.

Almost surely, 230947901276 is an apocalyptic number.

It is an amenable number.

30947901276 is an abundant number, since it is smaller than the sum of its proper divisors (43593281188).

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

30947901276 is a wasteful number, since it uses less digits than its factorization.

30947901276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83193321 (or 83193319 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 30947901276 in words is "thirty billion, nine hundred forty-seven million, nine hundred one thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 83193283 166386566 249579849 332773132 499159698 998319396 2578991773 5157983546 7736975319 10315967092 15473950638 30947901276