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61316070 = 2352043869
BaseRepresentation
bin1110100111100…
…1101111100110
311021101011211120
43221321233212
5111144103240
610030114410
71343115024
oct351715746
9137334746
1061316070
113167a742
121864ba06
13c91acca
148201714
1555b2ad0
hex3a79be6

61316070 has 16 divisors (see below), whose sum is σ = 147158640. Its totient is φ = 16350944.

The previous prime is 61316051. The next prime is 61316077. The reversal of 61316070 is 7061316.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61316070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61316077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021905 + ... + 1021964.

It is an arithmetic number, because the mean of its divisors is an integer number (9197415).

Almost surely, 261316070 is an apocalyptic number.

61316070 is an abundant number, since it is smaller than the sum of its proper divisors (85842570).

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

61316070 is a wasteful number, since it uses less digits than its factorization.

61316070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043879.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 61316070 is about 7830.4578410205. The cubic root of 61316070 is about 394.3284428369.

Adding to 61316070 its reverse (7061316), we get a palindrome (68377386).

The spelling of 61316070 in words is "sixty-one million, three hundred sixteen thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 2043869 4087738 6131607 10219345 12263214 20438690 30658035 61316070