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29971708084 = 2217868150773
BaseRepresentation
bin11011111010011100…
…111111100010110100
32212100210001112011101
4123322130333202310
5442340224124314
621434021415444
72110504213063
oct337234774264
985323045141
1029971708084
111179027a98a
12598556a584
132a9856a716
1416447a21da
15ba63db174
hex6fa73f8b4

29971708084 has 24 divisors (see below), whose sum is σ = 55543303368. Its totient is φ = 14102430720.

The previous prime is 29971708073. The next prime is 29971708087. The reversal of 29971708084 is 48080717992.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17027640100 + 12944067984 = 130490^2 + 113772^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29971708087) 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, 564922 + ... + 615694.

It is an arithmetic number, because the mean of its divisors is an integer number (2314304307).

Almost surely, 229971708084 is an apocalyptic number.

It is an amenable number.

29971708084 is a deficient number, since it is larger than the sum of its proper divisors (25571595284).

29971708084 is a wasteful number, since it uses less digits than its factorization.

29971708084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59475 (or 59473 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 29971708084 in words is "twenty-nine billion, nine hundred seventy-one million, seven hundred eight thousand, eighty-four".

Divisors: 1 2 4 17 34 68 8681 17362 34724 50773 101546 147577 203092 295154 590308 863141 1726282 3452564 440760413 881520826 1763041652 7492927021 14985854042 29971708084