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4871358640 = 245109155813
BaseRepresentation
bin1001000100101101…
…10000100010110000
3110120111022122210101
410202112300202300
534434031434030
62123214042144
7231500602531
oct44226604260
913514278711
104871358640
11207a833935
12b3b4a9354
135c82ca645
14342d76688
151d79e57ca
hex1225b08b0

4871358640 has 40 divisors (see below), whose sum is σ = 11336493168. Its totient is φ = 1946722560.

The previous prime is 4871358637. The next prime is 4871358641. The reversal of 4871358640 is 468531784.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is not an unprimeable number, because it can be changed into a prime (4871358641) 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, 59374 + ... + 115186.

Almost surely, 24871358640 is an apocalyptic number.

4871358640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4871358640 is an abundant number, since it is smaller than the sum of its proper divisors (6465134528).

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

4871358640 is a wasteful number, since it uses less digits than its factorization.

4871358640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56917 (or 56911 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 4871358640 is about 69795.1190270494. The cubic root of 4871358640 is about 1695.1834412486.

The spelling of 4871358640 in words is "four billion, eight hundred seventy-one million, three hundred fifty-eight thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1091 2182 4364 5455 8728 10910 17456 21820 43640 55813 87280 111626 223252 279065 446504 558130 893008 1116260 2232520 4465040 60891983 121783966 243567932 304459915 487135864 608919830 974271728 1217839660 2435679320 4871358640