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29892157 = 234131699
BaseRepresentation
bin111001000000…
…1111000111101
32002020200022221
41302001320331
530123022112
62544405341
7512036101
oct162017075
962220287
1029892157
1115967469
12a016851
136267b89
143d81901
152956e07
hex1c81e3d

29892157 has 8 divisors (see below), whose sum is σ = 31953600. Its totient is φ = 27894240.

The previous prime is 29892143. The next prime is 29892179. The reversal of 29892157 is 75129892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29892157 - 211 = 29890109 is a prime.

It is a super-2 number, since 2×298921572 = 1787082100225298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29892197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14907 + ... + 16792.

It is an arithmetic number, because the mean of its divisors is an integer number (3994200).

Almost surely, 229892157 is an apocalyptic number.

It is an amenable number.

29892157 is a deficient number, since it is larger than the sum of its proper divisors (2061443).

29892157 is a wasteful number, since it uses less digits than its factorization.

29892157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31763.

The product of its digits is 90720, while the sum is 43.

The square root of 29892157 is about 5467.3720378259. The cubic root of 29892157 is about 310.3504776995.

The spelling of 29892157 in words is "twenty-nine million, eight hundred ninety-two thousand, one hundred fifty-seven".

Divisors: 1 23 41 943 31699 729077 1299659 29892157