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29913956 = 228219109
BaseRepresentation
bin111001000011…
…1001101100100
32002021210020022
41302013031210
530124221311
62545054312
7512156462
oct162071544
962253208
1029913956
1115981886
12a027398
136274a87
143d89832
15295d5db
hex1c87364

29913956 has 12 divisors (see below), whose sum is σ = 52418940. Its totient is φ = 14937120.

The previous prime is 29913953. The next prime is 29913971. The reversal of 29913956 is 65931992.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 24344356 = 2360^2 + 4934^2 .

It is not an unprimeable number, because it can be changed into a prime (29913953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (4368245).

Almost surely, 229913956 is an apocalyptic number.

It is an amenable number.

29913956 is a deficient number, since it is larger than the sum of its proper divisors (22504984).

29913956 is a wasteful number, since it uses less digits than its factorization.

29913956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9934 (or 9932 counting only the distinct ones).

The product of its digits is 131220, while the sum is 44.

The square root of 29913956 is about 5469.3652282509. The cubic root of 29913956 is about 310.4259008969.

The spelling of 29913956 in words is "twenty-nine million, nine hundred thirteen thousand, nine hundred fifty-six".

Divisors: 1 2 4 821 1642 3284 9109 18218 36436 7478489 14956978 29913956