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29880613436 = 2231445154139
BaseRepresentation
bin11011110101000001…
…011111101000111100
32212010102122102210112
4123311001133220330
5442143414112221
621421005125152
72105320011032
oct336501375074
985112572715
1029880613436
1111743911153
12595ab597b8
132a8272446b
14163664c552
15b9d3e515b
hex6f505fa3c

29880613436 has 24 divisors (see below), whose sum is σ = 53991006720. Its totient is φ = 14454846000.

The previous prime is 29880613423. The next prime is 29880613447. The reversal of 29880613436 is 63431608892.

It is a happy number.

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, 524855 + ... + 578993.

It is an arithmetic number, because the mean of its divisors is an integer number (2249625280).

Almost surely, 229880613436 is an apocalyptic number.

It is an amenable number.

29880613436 is a deficient number, since it is larger than the sum of its proper divisors (24110393284).

29880613436 is a wasteful number, since it uses less digits than its factorization.

29880613436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58625 (or 58623 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 29880613436 in words is "twenty-nine billion, eight hundred eighty million, six hundred thirteen thousand, four hundred thirty-six".

Divisors: 1 2 4 31 62 124 4451 8902 17804 54139 108278 137981 216556 275962 551924 1678309 3356618 6713236 240972689 481945378 963890756 7470153359 14940306718 29880613436