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29879944 = 2323162391
BaseRepresentation
bin111000111111…
…0111010001000
32002020001120121
41301332322020
530122124234
62544233024
7511655353
oct161767210
962201517
1029879944
1115959276
12a00b774
136262453
143d7b29a
1529534b4
hex1c7ee88

29879944 has 16 divisors (see below), whose sum is σ = 58461120. Its totient is φ = 14290320.

The previous prime is 29879891. The next prime is 29879957. The reversal of 29879944 is 44997892.

It is a happy number.

It is a super-2 number, since 2×298799442 = 1785622106886272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29879891 and 29879900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81012 + ... + 81379.

It is an arithmetic number, because the mean of its divisors is an integer number (3653820).

Almost surely, 229879944 is an apocalyptic number.

It is an amenable number.

29879944 is a deficient number, since it is larger than the sum of its proper divisors (28581176).

29879944 is a wasteful number, since it uses less digits than its factorization.

29879944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162420 (or 162416 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 29879944 is about 5466.2550251520. The cubic root of 29879944 is about 310.3082054439.

The spelling of 29879944 in words is "twenty-nine million, eight hundred seventy-nine thousand, nine hundred forty-four".

Divisors: 1 2 4 8 23 46 92 184 162391 324782 649564 1299128 3734993 7469986 14939972 29879944