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61480494 = 23210333161
BaseRepresentation
bin1110101010000…
…1111000101110
311021200112101100
43222201320232
5111214333434
610033423530
71344401265
oct352417056
9137615340
1061480494
1131782229
121870aba6
13c977aba
1482455dc
1555e6699
hex3aa1e2e

61480494 has 24 divisors (see below), whose sum is σ = 134505072. Its totient is φ = 20293920.

The previous prime is 61480487. The next prime is 61480499. The reversal of 61480494 is 49408416.

It is a happy number.

It is a super-2 number, since 2×614804942 = 7559702284968072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61480499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14727 + ... + 18434.

It is an arithmetic number, because the mean of its divisors is an integer number (5604378).

Almost surely, 261480494 is an apocalyptic number.

61480494 is an abundant number, since it is smaller than the sum of its proper divisors (73024578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61480494 is a wasteful number, since it uses less digits than its factorization.

61480494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33272 (or 33269 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 61480494 is about 7840.9498149140. The cubic root of 61480494 is about 394.6806027780.

The spelling of 61480494 in words is "sixty-one million, four hundred eighty thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 103 206 309 618 927 1854 33161 66322 99483 198966 298449 596898 3415583 6831166 10246749 20493498 30740247 61480494