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5457661660 = 2251159420467
BaseRepresentation
bin1010001010100110…
…10100111011011100
3112002100112221100001
411011103110323130
542134130133120
62301320344044
7252150234013
oct50523247334
915070487301
105457661660
112350786a90
121083915024
1368c90b9c9
1439ab95a7a
1521e209e0a
hex1454d4edc

5457661660 has 48 divisors (see below), whose sum is σ = 12714952320. Its totient is φ = 1950962240.

The previous prime is 5457661633. The next prime is 5457661661. The reversal of 5457661660 is 661667545.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5457661660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5457661661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 197254 + ... + 223213.

It is an arithmetic number, because the mean of its divisors is an integer number (264894840).

Almost surely, 25457661660 is an apocalyptic number.

It is an amenable number.

5457661660 is an abundant number, since it is smaller than the sum of its proper divisors (7257290660).

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

5457661660 is a wasteful number, since it uses less digits than its factorization.

5457661660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420546 (or 420544 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 5457661660 is about 73875.9883859431. The cubic root of 5457661660 is about 1760.6331292231.

The spelling of 5457661660 in words is "five billion, four hundred fifty-seven million, six hundred sixty-one thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 59 110 118 220 236 295 590 649 1180 1298 2596 3245 6490 12980 420467 840934 1681868 2102335 4204670 4625137 8409340 9250274 18500548 23125685 24807553 46251370 49615106 92502740 99230212 124037765 248075530 272883083 496151060 545766166 1091532332 1364415415 2728830830 5457661660