Search a number
-
+
764660451740 = 22538233022587
BaseRepresentation
bin10110010000010010101…
…00001000100110011100
32201002201111112200101212
423020021110020212130
5100012011033423430
61343140303123552
7106146666412043
oct13101124104634
92632644480355
10764660451740
11275321988069
121042432a35b8
13571515bbb83
142901cb0d55a
1514d55a3eb95
hexb20950899c

764660451740 has 12 divisors (see below), whose sum is σ = 1605786948696. Its totient is φ = 305864180688.

The previous prime is 764660451697. The next prime is 764660451749. The reversal of 764660451740 is 47154066467.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764660451749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19116511274 + ... + 19116511313.

It is an arithmetic number, because the mean of its divisors is an integer number (133815579058).

Almost surely, 2764660451740 is an apocalyptic number.

It is an amenable number.

764660451740 is an abundant number, since it is smaller than the sum of its proper divisors (841126496956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764660451740 is a wasteful number, since it uses less digits than its factorization.

764660451740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38233022596 (or 38233022594 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 764660451740 in words is "seven hundred sixty-four billion, six hundred sixty million, four hundred fifty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 38233022587 76466045174 152932090348 191165112935 382330225870 764660451740