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61238804 = 22116720773
BaseRepresentation
bin1110100110011…
…0111000010100
311021020020211212
43221212320110
5111134120204
610024320552
71342343534
oct351467024
9137206755
1061238804
1131627690
1218613158
13c8c1aa3
1481c14c4
155599c6e
hex3a66e14

61238804 has 24 divisors (see below), whose sum is σ = 118661088. Its totient is φ = 27419040.

The previous prime is 61238773. The next prime is 61238809. The reversal of 61238804 is 40883216.

61238804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×612388042 = 7500382230700832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61238809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7439 + ... + 13334.

It is an arithmetic number, because the mean of its divisors is an integer number (4944212).

Almost surely, 261238804 is an apocalyptic number.

It is an amenable number.

61238804 is a deficient number, since it is larger than the sum of its proper divisors (57422284).

61238804 is a wasteful number, since it uses less digits than its factorization.

61238804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20855 (or 20853 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 61238804 is about 7825.5226023570. The cubic root of 61238804 is about 394.1627386512.

The spelling of 61238804 in words is "sixty-one million, two hundred thirty-eight thousand, eight hundred four".

Divisors: 1 2 4 11 22 44 67 134 268 737 1474 2948 20773 41546 83092 228503 457006 914012 1391791 2783582 5567164 15309701 30619402 61238804