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29972593 = 74281799
BaseRepresentation
bin111001001010…
…1100001110001
32002101202200001
41302111201301
530133110333
62550230001
7512522440
oct162254161
962352601
1029972593
1115a11942
12a055301
136295681
143da2d57
152970b7d
hex1c95871

29972593 has 4 divisors (see below), whose sum is σ = 34254400. Its totient is φ = 25690788.

The previous prime is 29972587. The next prime is 29972597. The reversal of 29972593 is 39527992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29972593 - 25 = 29972561 is a prime.

It is a super-2 number, since 2×299725932 = 1796712662287298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29972597) 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, 2140893 + ... + 2140906.

It is an arithmetic number, because the mean of its divisors is an integer number (8563600).

Almost surely, 229972593 is an apocalyptic number.

It is an amenable number.

29972593 is a deficient number, since it is larger than the sum of its proper divisors (4281807).

29972593 is an equidigital number, since it uses as much as digits as its factorization.

29972593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281806.

The product of its digits is 306180, while the sum is 46.

The square root of 29972593 is about 5474.7230980206. The cubic root of 29972593 is about 310.6285996314.

The spelling of 29972593 in words is "twenty-nine million, nine hundred seventy-two thousand, five hundred ninety-three".

Divisors: 1 7 4281799 29972593