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29679045 = 3511199467
BaseRepresentation
bin111000100110…
…1110111000101
32001211211222220
41301031313011
530044212140
62540042553
7510160554
oct161156705
961754886
1029679045
1115831340
129b33459
1361c1b86
143d27d9b
152913bd0
hex1c4ddc5

29679045 has 32 divisors (see below), whose sum is σ = 54535680. Its totient is φ = 13631040.

The previous prime is 29679037. The next prime is 29679047. The reversal of 29679045 is 54097692.

29679045 = T425 + T426 + ... + T633.

It is not a de Polignac number, because 29679045 - 23 = 29679037 is a prime.

It is a super-2 number, since 2×296790452 = 1761691424224050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29678988 and 29679006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29679047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1599 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (1704240).

Almost surely, 229679045 is an apocalyptic number.

It is an amenable number.

29679045 is a deficient number, since it is larger than the sum of its proper divisors (24856635).

29679045 is a wasteful number, since it uses less digits than its factorization.

29679045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 29679045 is about 5447.8477401631. The cubic root of 29679045 is about 309.6111844039.

It can be divided in two parts, 296790 and 45, that added together give a triangular number (296835 = T770).

The spelling of 29679045 in words is "twenty-nine million, six hundred seventy-nine thousand, forty-five".

Divisors: 1 3 5 11 15 19 33 55 57 95 165 209 285 627 1045 3135 9467 28401 47335 104137 142005 179873 312411 520685 539619 899365 1562055 1978603 2698095 5935809 9893015 29679045