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685220700601 = 1316113855667
BaseRepresentation
bin10011111100010100101…
…01100010000110111001
32102111200012122012100201
421332022111202012321
542211312444404401
61242441441402201
7100335256566043
oct11761225420671
92374605565321
10685220700601
11244667249278
12b0973039361
134c801575478
1425244530a93
1512c5683ab01
hex9f8a5621b9

685220700601 has 8 divisors (see below), whose sum is σ = 690565148064. Its totient is φ = 679877976960.

The previous prime is 685220700589. The next prime is 685220700607. The reversal of 685220700601 is 106007022586.

It is a happy number.

685220700601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 685220700601 - 25 = 685220700569 is a prime.

It is a super-2 number, since 2×6852207006012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685220700607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372970 + ... + 1228636.

It is an arithmetic number, because the mean of its divisors is an integer number (86320643508).

Almost surely, 2685220700601 is an apocalyptic number.

It is an amenable number.

685220700601 is a deficient number, since it is larger than the sum of its proper divisors (5344447463).

685220700601 is a wasteful number, since it uses less digits than its factorization.

685220700601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861911.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 685220700601 in words is "six hundred eighty-five billion, two hundred twenty million, seven hundred thousand, six hundred one".

Divisors: 1 131 6113 800803 855667 112092377 5230692371 685220700601