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61164708 = 223111797281
BaseRepresentation
bin1110100101010…
…0110010100100
311021002111012120
43221110302210
5111124232313
610022545540
71341614523
oct351246244
9137074176
1061164708
1131586a50
12185982b0
13c897147
1481a24ba
155582d23
hex3a54ca4

61164708 has 96 divisors (see below), whose sum is σ = 167142528. Its totient is φ = 17203200.

The previous prime is 61164707. The next prime is 61164713. The reversal of 61164708 is 80746116.

It is a happy number.

It is a super-2 number, since 2×611647082 = 7482243009450528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61164707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217528 + ... + 217808.

It is an arithmetic number, because the mean of its divisors is an integer number (1741068).

Almost surely, 261164708 is an apocalyptic number.

61164708 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61164708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83571264).

61164708 is an abundant number, since it is smaller than the sum of its proper divisors (105977820).

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

61164708 is a wasteful number, since it uses less digits than its factorization.

61164708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 61164708 is about 7820.7869169285. The cubic root of 61164708 is about 394.0037018557.

The spelling of 61164708 in words is "sixty-one million, one hundred sixty-four thousand, seven hundred eight".

Divisors: 1 2 3 4 6 11 12 17 22 33 34 44 51 66 68 97 102 132 187 194 204 281 291 374 388 561 562 582 748 843 1067 1122 1124 1164 1649 1686 2134 2244 3091 3201 3298 3372 4268 4777 4947 6182 6402 6596 9273 9554 9894 12364 12804 14331 18139 18546 19108 19788 27257 28662 36278 37092 52547 54417 54514 57324 72556 81771 105094 108834 109028 157641 163542 210188 217668 299827 315282 327084 463369 599654 630564 899481 926738 1199308 1390107 1798962 1853476 2780214 3597924 5097059 5560428 10194118 15291177 20388236 30582354 61164708