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61245412 = 2223976863
BaseRepresentation
bin1110100110100…
…0011111100100
311021020120220121
43221220133210
5111134323122
610024411324
71342402024
oct351503744
9137216817
1061245412
1131631648
1218616b44
13c8c4ab7
1481c3a84
15559bbc7
hex3a687e4

61245412 has 24 divisors (see below), whose sum is σ = 113008896. Its totient is φ = 28985088.

The previous prime is 61245391. The next prime is 61245421. The reversal of 61245412 is 21454216.

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, 5493 + ... + 12355.

It is an arithmetic number, because the mean of its divisors is an integer number (4708704).

Almost surely, 261245412 is an apocalyptic number.

It is an amenable number.

61245412 is a deficient number, since it is larger than the sum of its proper divisors (51763484).

61245412 is a wasteful number, since it uses less digits than its factorization.

61245412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987 (or 6985 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 61245412 is about 7825.9447991920. The cubic root of 61245412 is about 394.1769155756.

Adding to 61245412 its reverse (21454216), we get a palindrome (82699628).

The spelling of 61245412 in words is "sixty-one million, two hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 4 23 46 92 97 194 388 2231 4462 6863 8924 13726 27452 157849 315698 631396 665711 1331422 2662844 15311353 30622706 61245412