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61082156 = 22171316857
BaseRepresentation
bin1110100100000…
…0101000101100
311020221021222002
43221000220230
5111114112111
610021111432
71341122042
oct351005054
9136837862
1061082156
113152aa23
1218558578
13c8686b5
148180392
15556863b
hex3a40a2c

61082156 has 24 divisors (see below), whose sum is σ = 114062256. Its totient is φ = 28520960.

The previous prime is 61082143. The next prime is 61082171. The reversal of 61082156 is 65128016.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5480 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (4752594).

Almost surely, 261082156 is an apocalyptic number.

It is an amenable number.

61082156 is a deficient number, since it is larger than the sum of its proper divisors (52980100).

61082156 is a wasteful number, since it uses less digits than its factorization.

61082156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009 (or 7007 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 61082156 is about 7815.5074051529. The cubic root of 61082156 is about 393.8263640921.

The spelling of 61082156 in words is "sixty-one million, eighty-two thousand, one hundred fifty-six".

Divisors: 1 2 4 17 34 68 131 262 524 2227 4454 6857 8908 13714 27428 116569 233138 466276 898267 1796534 3593068 15270539 30541078 61082156