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29890964 = 2217439573
BaseRepresentation
bin111001000000…
…1100110010100
32002020121200202
41302001212110
530123002324
62544400032
7512032445
oct162014624
962217622
1029890964
1115966584
12a016018
13626747c
143d812cc
1529568ae
hex1c81994

29890964 has 12 divisors (see below), whose sum is σ = 55386324. Its totient is φ = 14066304.

The previous prime is 29890957. The next prime is 29890969. The reversal of 29890964 is 46909892.

It can be written as a sum of positive squares in 2 ways, for example, as 28090000 + 1800964 = 5300^2 + 1342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29890969) 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, 219719 + ... + 219854.

It is an arithmetic number, because the mean of its divisors is an integer number (4615527).

Almost surely, 229890964 is an apocalyptic number.

It is an amenable number.

29890964 is a deficient number, since it is larger than the sum of its proper divisors (25495360).

29890964 is a wasteful number, since it uses less digits than its factorization.

29890964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439594 (or 439592 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 29890964 is about 5467.2629349611. The cubic root of 29890964 is about 310.3463489348.

The spelling of 29890964 in words is "twenty-nine million, eight hundred ninety thousand, nine hundred sixty-four".

Divisors: 1 2 4 17 34 68 439573 879146 1758292 7472741 14945482 29890964