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61131346 = 2138122133
BaseRepresentation
bin1110100100110…
…0101001010010
311021000210102221
43221030221102
5111122200341
610022131254
71341415333
oct351145122
9137023387
1061131346
1131563981
1218580b2a
13c884bc3
14819428a
155577ed1
hex3a4ca52

61131346 has 8 divisors (see below), whose sum is σ = 91767564. Its totient is φ = 30542160.

The previous prime is 61131319. The next prime is 61131383. The reversal of 61131346 is 64313116.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61074225 + 57121 = 7815^2 + 239^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61131346.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8305 + ... + 13828.

Almost surely, 261131346 is an apocalyptic number.

61131346 is a deficient number, since it is larger than the sum of its proper divisors (30636218).

61131346 is a wasteful number, since it uses less digits than its factorization.

61131346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23516.

The product of its digits is 1296, while the sum is 25.

The square root of 61131346 is about 7818.6537204304. The cubic root of 61131346 is about 393.9320530102.

The spelling of 61131346 in words is "sixty-one million, one hundred thirty-one thousand, three hundred forty-six".

Divisors: 1 2 1381 2762 22133 44266 30565673 61131346