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61690116010 = 256169011601
BaseRepresentation
bin111001011101000001…
…000111011110101010
312220020021211121001111
4321131001013132222
52002320132203020
644201241140534
74312511222425
oct713501073652
9186207747044
1061690116010
112418750a256
12bb57a8a74a
135a81955933
142db31249bc
151910d02d5a
hexe5d0477aa

61690116010 has 8 divisors (see below), whose sum is σ = 111042208836. Its totient is φ = 24676046400.

The previous prime is 61690115999. The next prime is 61690116029. The reversal of 61690116010 is 1061109616.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52689988849 + 9000127161 = 229543^2 + 94869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084505791 + ... + 3084505810.

Almost surely, 261690116010 is an apocalyptic number.

61690116010 is a deficient number, since it is larger than the sum of its proper divisors (49352092826).

61690116010 is a wasteful number, since it uses less digits than its factorization.

61690116010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169011608.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 61690116010 in words is "sixty-one billion, six hundred ninety million, one hundred sixteen thousand, ten".

Divisors: 1 2 5 10 6169011601 12338023202 30845058005 61690116010