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86780901 = 329699743
BaseRepresentation
bin1010010110000…
…10101111100101
320001021221000110
411023002233211
5134203442101
612340003233
72102424354
oct513025745
9201257013
1086780901
1144a92859
1225090519
1314c9595c
14b74d99b
157942cd6
hex52c2be5

86780901 has 8 divisors (see below), whose sum is σ = 115758720. Its totient is φ = 57828512.

The previous prime is 86780893. The next prime is 86780927. The reversal of 86780901 is 10908768.

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 86780901 - 23 = 86780893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86780901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86780101) 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, 4036 + ... + 13778.

It is an arithmetic number, because the mean of its divisors is an integer number (14469840).

Almost surely, 286780901 is an apocalyptic number.

It is an amenable number.

86780901 is a deficient number, since it is larger than the sum of its proper divisors (28977819).

86780901 is a wasteful number, since it uses less digits than its factorization.

86780901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12715.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 86780901 is about 9315.6267099965. The cubic root of 86780901 is about 442.7324808573.

The spelling of 86780901 in words is "eighty-six million, seven hundred eighty thousand, nine hundred one".

Divisors: 1 3 2969 8907 9743 29229 28926967 86780901