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1316972590 = 25131697259
BaseRepresentation
bin100111001111111…
…0110100000101110
310101210010010202121
41032133312200232
510144121110330
6334403143154
744431040143
oct11637664056
93353103677
101316972590
1161643aaaa
12309074aba
1317cacb42b
14c6c9c3ca
157a94417a
hex4e7f682e

1316972590 has 8 divisors (see below), whose sum is σ = 2370550680. Its totient is φ = 526789032.

The previous prime is 1316972551. The next prime is 1316972611. The reversal of 1316972590 is 952796131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13169725902 = 3468833605622616200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65848620 + ... + 65848639.

It is an arithmetic number, because the mean of its divisors is an integer number (296318835).

Almost surely, 21316972590 is an apocalyptic number.

1316972590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1316972590 is a deficient number, since it is larger than the sum of its proper divisors (1053578090).

1316972590 is a wasteful number, since it uses less digits than its factorization.

1316972590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131697266.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 1316972590 is about 36290.1169741846. The cubic root of 1316972590 is about 1096.1220443906.

The spelling of 1316972590 in words is "one billion, three hundred sixteen million, nine hundred seventy-two thousand, five hundred ninety".

Divisors: 1 2 5 10 131697259 263394518 658486295 1316972590