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29112540387 = 372947803843
BaseRepresentation
bin11011000111001111…
…100001110011100011
32210010220101021122120
4123013033201303203
5434110302243022
621212450435323
72050302340020
oct330717416343
983126337576
1029112540387
111138a2a7537
125785892b43
13298c56c678
1415a2634547
15b55c77d5c
hex6c73e1ce3

29112540387 has 16 divisors (see below), whose sum is σ = 45891690240. Its totient is φ = 16062090912.

The previous prime is 29112540361. The next prime is 29112540397. The reversal of 29112540387 is 78304521192.

It is not a de Polignac number, because 29112540387 - 214 = 29112524003 is a prime.

It is a super-2 number, since 2×291125403872 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29112540397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23901313 + ... + 23902530.

It is an arithmetic number, because the mean of its divisors is an integer number (2868230640).

Almost surely, 229112540387 is an apocalyptic number.

29112540387 is a deficient number, since it is larger than the sum of its proper divisors (16779149853).

29112540387 is a wasteful number, since it uses less digits than its factorization.

29112540387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47803882.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 29112540387 in words is "twenty-nine billion, one hundred twelve million, five hundred forty thousand, three hundred eighty-seven".

Divisors: 1 3 7 21 29 87 203 609 47803843 143411529 334626901 1003880703 1386311447 4158934341 9704180129 29112540387