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2131102408 = 2313910971747
BaseRepresentation
bin111111100000110…
…0000101011001000
312111112001012220211
41333001200223020
513331030234113
6551244530504
7103545033361
oct17701405310
95445035824
102131102408
119a3a51866
124b5850a34
1327c68a856
14163064b68
15c715cb3d
hex7f060ac8

2131102408 has 32 divisors (see below), whose sum is σ = 4030538400. Its totient is φ = 1056316032.

The previous prime is 2131102397. The next prime is 2131102447. The reversal of 2131102408 is 8042011312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218991 + ... + 1220737.

It is an arithmetic number, because the mean of its divisors is an integer number (125954325).

Almost surely, 22131102408 is an apocalyptic number.

It is an amenable number.

2131102408 is a deficient number, since it is larger than the sum of its proper divisors (1899435992).

2131102408 is a wasteful number, since it uses less digits than its factorization.

2131102408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2131102408 is about 46163.8647428917. The cubic root of 2131102408 is about 1286.8702865603.

The spelling of 2131102408 in words is "two billion, one hundred thirty-one million, one hundred two thousand, four hundred eight".

Divisors: 1 2 4 8 139 278 556 1097 1112 1747 2194 3494 4388 6988 8776 13976 152483 242833 304966 485666 609932 971332 1219864 1916459 1942664 3832918 7665836 15331672 266387801 532775602 1065551204 2131102408