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61236897 = 345134523
BaseRepresentation
bin1110100110011…
…0011010100001
311021020011020020
43221212122201
5111134040042
610024304053
71342335141
oct351463241
9137204206
1061236897
1131626207
1218612029
13c8c0c67
1481c0921
1555993ec
hex3a666a1

61236897 has 8 divisors (see below), whose sum is σ = 81685344. Its totient is φ = 40806528.

The previous prime is 61236883. The next prime is 61236919. The reversal of 61236897 is 79863216.

It is a happy number.

61236897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61236897 - 24 = 61236881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61236697) 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, 11278 + ... + 15800.

It is an arithmetic number, because the mean of its divisors is an integer number (10210668).

Almost surely, 261236897 is an apocalyptic number.

It is an amenable number.

61236897 is a deficient number, since it is larger than the sum of its proper divisors (20448447).

61236897 is a wasteful number, since it uses less digits than its factorization.

61236897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039.

The product of its digits is 108864, while the sum is 42.

The square root of 61236897 is about 7825.4007565108. The cubic root of 61236897 is about 394.1586471487.

The spelling of 61236897 in words is "sixty-one million, two hundred thirty-six thousand, eight hundred ninety-seven".

Divisors: 1 3 4513 4523 13539 13569 20412299 61236897