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761990 = 25233313
BaseRepresentation
bin10111010000010000110
31102201020212
42322002012
5143340430
624155422
76322355
oct2720206
91381225
10761990
11480549
12308b72
13208aa8
1415b99c
15100b95
hexba086

761990 has 16 divisors (see below), whose sum is σ = 1431648. Its totient is φ = 291456.

The previous prime is 761983. The next prime is 761993. The reversal of 761990 is 99167.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761993) 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, 1427 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (89478).

2761990 is an apocalyptic number.

761990 is a deficient number, since it is larger than the sum of its proper divisors (669658).

761990 is a wasteful number, since it uses less digits than its factorization.

761990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 761990 is about 872.9203858314. The cubic root of 761990 is about 91.3376339578.

The spelling of 761990 in words is "seven hundred sixty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 3313 6626 16565 33130 76199 152398 380995 761990