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29686956 = 22313190301
BaseRepresentation
bin111000100111…
…1110010101100
32001212020211220
41301033302230
530044440311
62540143340
7510222615
oct161176254
961766756
1029686956
1115837282
129b37b50
1361c5660
143d2ac0c
152916206
hex1c4fcac

29686956 has 24 divisors (see below), whose sum is σ = 74598384. Its totient is φ = 9134400.

The previous prime is 29686927. The next prime is 29686957. The reversal of 29686956 is 65968692.

It is a junction number, because it is equal to n+sod(n) for n = 29686899 and 29686908.

It is not an unprimeable number, because it can be changed into a prime (29686957) 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, 94995 + ... + 95306.

It is an arithmetic number, because the mean of its divisors is an integer number (3108266).

Almost surely, 229686956 is an apocalyptic number.

29686956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

29686956 is an abundant number, since it is smaller than the sum of its proper divisors (44911428).

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

29686956 is a wasteful number, since it uses less digits than its factorization.

29686956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190321 (or 190319 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 29686956 is about 5448.5737583335. The cubic root of 29686956 is about 309.6386910896.

The spelling of 29686956 in words is "twenty-nine million, six hundred eighty-six thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 190301 380602 570903 761204 1141806 2283612 2473913 4947826 7421739 9895652 14843478 29686956