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868136037 = 31392081861
BaseRepresentation
bin110011101111101…
…011010001100101
32020111112212202120
4303233223101211
53234220323122
6222051100153
730341014566
oct6357532145
92214485676
10868136037
114060494aa
122028a1659
1310ab1b182
148342416d
155133575c
hex33beb465

868136037 has 8 divisors (see below), whose sum is σ = 1165842720. Its totient is φ = 574593360.

The previous prime is 868135999. The next prime is 868136039. The reversal of 868136037 is 730631868.

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

It is not a de Polignac number, because 868136037 - 220 = 867087461 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 868136037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868136039) 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, 1040514 + ... + 1041347.

It is an arithmetic number, because the mean of its divisors is an integer number (145730340).

Almost surely, 2868136037 is an apocalyptic number.

It is an amenable number.

868136037 is a deficient number, since it is larger than the sum of its proper divisors (297706683).

868136037 is a wasteful number, since it uses less digits than its factorization.

868136037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082003.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 868136037 is about 29464.1483331862. The cubic root of 868136037 is about 953.9580155919.

The spelling of 868136037 in words is "eight hundred sixty-eight million, one hundred thirty-six thousand, thirty-seven".

Divisors: 1 3 139 417 2081861 6245583 289378679 868136037