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61153090 = 2523265883
BaseRepresentation
bin1110100101000…
…1111101000010
311021001220021021
43221101331002
5111123344330
610022420054
71341535615
oct351217502
9137056237
1061153090
1131579249
121859162a
13c891a7b
14819c17c
15557e67a
hex3a51f42

61153090 has 16 divisors (see below), whose sum is σ = 114861888. Its totient is φ = 23397616.

The previous prime is 61153061. The next prime is 61153093. The reversal of 61153090 is 9035116.

61153090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61153093) 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, 132712 + ... + 133171.

It is an arithmetic number, because the mean of its divisors is an integer number (7178868).

Almost surely, 261153090 is an apocalyptic number.

61153090 is a deficient number, since it is larger than the sum of its proper divisors (53708798).

61153090 is a wasteful number, since it uses less digits than its factorization.

61153090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265913.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 61153090 is about 7820.0441175226. The cubic root of 61153090 is about 393.9787537823.

The spelling of 61153090 in words is "sixty-one million, one hundred fifty-three thousand, ninety".

Divisors: 1 2 5 10 23 46 115 230 265883 531766 1329415 2658830 6115309 12230618 30576545 61153090