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766990 = 25710957
BaseRepresentation
bin10111011010000001110
31102222010001
42323100032
5144020430
624234514
76343060
oct2732016
91388101
10766990
11484284
1230ba3a
1320b153
1415d730
151023ca
hexbb40e

766990 has 16 divisors (see below), whose sum is σ = 1577952. Its totient is φ = 262944.

The previous prime is 766967. The next prime is 766999. The reversal of 766990 is 99667.

766990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766999) by changing a digit.

766990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409 + ... + 5548.

It is an arithmetic number, because the mean of its divisors is an integer number (98622).

2766990 is an apocalyptic number.

766990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

766990 is an abundant number, since it is smaller than the sum of its proper divisors (810962).

It is a weird number, because it is abundant, but not a pseudoperfect number.

766990 is a wasteful number, since it uses less digits than its factorization.

766990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10971.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 766990 is about 875.7796526524. The cubic root of 766990 is about 91.5369773008.

The spelling of 766990 in words is "seven hundred sixty-six thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 10957 21914 54785 76699 109570 153398 383495 766990