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61249396 = 22131177873
BaseRepresentation
bin1110100110100…
…1011101110100
311021020210101011
43221221131310
5111134440041
610024442004
71342416445
oct351513564
9137223334
1061249396
113163463a
1218619304
13c8c6860
1481c52cc
15559ce81
hex3a69774

61249396 has 12 divisors (see below), whose sum is σ = 115431652. Its totient is φ = 28268928.

The previous prime is 61249387. The next prime is 61249399. The reversal of 61249396 is 69394216.

It can be written as a sum of positive squares in 2 ways, for example, as 31764496 + 29484900 = 5636^2 + 5430^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61249399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588885 + ... + 588988.

Almost surely, 261249396 is an apocalyptic number.

It is an amenable number.

61249396 is a deficient number, since it is larger than the sum of its proper divisors (54182256).

61249396 is a wasteful number, since it uses less digits than its factorization.

61249396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177890 (or 1177888 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 61249396 is about 7826.1993330096. The cubic root of 61249396 is about 394.1854624296.

The spelling of 61249396 in words is "sixty-one million, two hundred forty-nine thousand, three hundred ninety-six".

Divisors: 1 2 4 13 26 52 1177873 2355746 4711492 15312349 30624698 61249396