Search a number
-
+
5181800764 = 2272191391461
BaseRepresentation
bin1001101001101110…
…00000000100111100
3111101010110202022211
410310313000010330
541103020111024
62214103550204
7242260402600
oct46467000474
914333422284
105181800764
112219a9a678
12100745b364
136477132ca
143722a7500
15204db8594
hex134dc013c

5181800764 has 36 divisors (see below), whose sum is σ = 11103866760. Its totient is φ = 2103887520.

The previous prime is 5181800737. The next prime is 5181800773. The reversal of 5181800764 is 4670081815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 692007 + ... + 699454.

Almost surely, 25181800764 is an apocalyptic number.

It is an amenable number.

5181800764 is an abundant number, since it is smaller than the sum of its proper divisors (5922065996).

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

5181800764 is a wasteful number, since it uses less digits than its factorization.

5181800764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391498 (or 1391489 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 5181800764 is about 71984.7259076535. The cubic root of 5181800764 is about 1730.4547084570.

The spelling of 5181800764 in words is "five billion, one hundred eighty-one million, eight hundred thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 1391461 2782922 5565844 9740227 19480454 26437759 38960908 52875518 68181589 105751036 136363178 185064313 272726356 370128626 740257252 1295450191 2590900382 5181800764