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29315982 = 2315731121
BaseRepresentation
bin110111111010…
…1001110001110
32001011101222010
41233311032032
530001102412
62524202050
7504116223
oct157651616
961141863
1029315982
1115603593
129999326
1360c5847
143c7194a
15289133c
hex1bf538e

29315982 has 16 divisors (see below), whose sum is σ = 59007312. Its totient is φ = 9709440.

The previous prime is 29315953. The next prime is 29315989. The reversal of 29315982 is 28951392.

It is a self number, because there is not a number n which added to its sum of digits gives 29315982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29315989) 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, 14619 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (3687957).

Almost surely, 229315982 is an apocalyptic number.

29315982 is an abundant number, since it is smaller than the sum of its proper divisors (29691330).

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

29315982 is a wasteful number, since it uses less digits than its factorization.

29315982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31283.

The product of its digits is 38880, while the sum is 39.

The square root of 29315982 is about 5414.4235150199. The cubic root of 29315982 is about 308.3435125606.

The spelling of 29315982 in words is "twenty-nine million, three hundred fifteen thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 157 314 471 942 31121 62242 93363 186726 4885997 9771994 14657991 29315982