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29957469 = 382112163
BaseRepresentation
bin111001001000…
…1110101011101
32002100222220220
41302101311131
530132114334
62550031553
7512430363
oct162216535
962328826
1029957469
1115a01543
12a0485b9
13628b819
143d9b633
15296b449
hex1c91d5d

29957469 has 8 divisors (see below), whose sum is σ = 39995232. Its totient is φ = 19945680.

The previous prime is 29957467. The next prime is 29957479. The reversal of 29957469 is 96475992.

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

It is not a de Polignac number, because 29957469 - 21 = 29957467 is a prime.

It is a super-2 number, since 2×299574692 = 1794899897771922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29957467) 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, 3619 + ... + 8544.

It is an arithmetic number, because the mean of its divisors is an integer number (4999404).

Almost surely, 229957469 is an apocalyptic number.

It is an amenable number.

29957469 is a deficient number, since it is larger than the sum of its proper divisors (10037763).

29957469 is a wasteful number, since it uses less digits than its factorization.

29957469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987.

The product of its digits is 1224720, while the sum is 51.

The square root of 29957469 is about 5473.3416666603. The cubic root of 29957469 is about 310.5763436994.

The spelling of 29957469 in words is "twenty-nine million, nine hundred fifty-seven thousand, four hundred sixty-nine".

Divisors: 1 3 821 2463 12163 36489 9985823 29957469