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2390136860 = 2251733132207
BaseRepresentation
bin1000111001110110…
…1001100000011100
320011120110112101102
42032131221200130
514343333334420
61033100532232
7113141554016
oct21635514034
96146415342
102390136860
111017196221
12568551078
132c1244487
141896131b6
15dec78a75
hex8e76981c

2390136860 has 48 divisors (see below), whose sum is σ = 5066724096. Its totient is φ = 947062272.

The previous prime is 2390136857. The next prime is 2390136887. The reversal of 2390136860 is 686310932.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081877 + ... + 1084083.

It is an arithmetic number, because the mean of its divisors is an integer number (105556752).

Almost surely, 22390136860 is an apocalyptic number.

2390136860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2390136860 is an abundant number, since it is smaller than the sum of its proper divisors (2676587236).

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

2390136860 is a wasteful number, since it uses less digits than its factorization.

2390136860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 2390136860 is about 48889.0259669795. The cubic root of 2390136860 is about 1337.0292955699.

The spelling of 2390136860 in words is "two billion, three hundred ninety million, one hundred thirty-six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 173 313 346 626 692 865 1252 1565 1730 2207 3130 3460 4414 6260 8828 11035 22070 44140 54149 108298 216596 270745 381811 541490 690791 763622 1082980 1381582 1527244 1909055 2763164 3453955 3818110 6907910 7636220 13815820 119506843 239013686 478027372 597534215 1195068430 2390136860