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690480752972 = 22461427387631
BaseRepresentation
bin10100000110000111101…
…11000010100101001100
32110000020210100112201012
422003003313002211030
542303101033043342
61245111422504352
7100612520363513
oct12030367024514
92400223315635
10690480752972
1124691642549a
12b19a07350b8
135015c2560aa
14255c2d6767a
1512e6350eb82
hexa0c3dc294c

690480752972 has 24 divisors (see below), whose sum is σ = 1211259669312. Its totient is φ = 344406931200.

The previous prime is 690480752939. The next prime is 690480752989. The reversal of 690480752972 is 279257084096.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7835597 + ... + 7923227.

It is an arithmetic number, because the mean of its divisors is an integer number (50469152888).

Almost surely, 2690480752972 is an apocalyptic number.

It is an amenable number.

690480752972 is a deficient number, since it is larger than the sum of its proper divisors (520778916340).

690480752972 is a wasteful number, since it uses less digits than its factorization.

690480752972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92369 (or 92367 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 690480752972 in words is "six hundred ninety billion, four hundred eighty million, seven hundred fifty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 461 922 1844 4273 8546 17092 87631 175262 350524 1969853 3939706 7879412 40397891 80795782 161591564 374447263 748894526 1497789052 172620188243 345240376486 690480752972