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29860979140 = 22512711756291
BaseRepresentation
bin11011110011110110…
…100110000111000100
32212002001200220121101
4123303312212013010
5442123402313030
621415024225444
72104661064136
oct336366460704
985061626541
1029860979140
1111733820663
12595446b284
132a7b63b635
141633bbb056
15b9b8177ca
hex6f3da61c4

29860979140 has 24 divisors (see below), whose sum is σ = 63201825792. Its totient is φ = 11850340320.

The previous prime is 29860979129. The next prime is 29860979209. The reversal of 29860979140 is 4197906892.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875606 + ... + 5880685.

It is an arithmetic number, because the mean of its divisors is an integer number (2633409408).

Almost surely, 229860979140 is an apocalyptic number.

29860979140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29860979140 is an abundant number, since it is smaller than the sum of its proper divisors (33340846652).

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

29860979140 is a wasteful number, since it uses less digits than its factorization.

29860979140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756427 (or 11756425 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 29860979140 in words is "twenty-nine billion, eight hundred sixty million, nine hundred seventy-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 11756291 23512582 47025164 58781455 117562910 235125820 1493048957 2986097914 5972195828 7465244785 14930489570 29860979140