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1316422990 = 251259104561
BaseRepresentation
bin100111001110111…
…0000010101001110
310101202002012212001
41032131300111032
510144001013430
6334343302514
744423260621
oct11635602516
93352065761
101316422990
116160a5093
12308a4aa3a
1317c96821c
14c6b97db8
157a8863ca
hex4e77054e

1316422990 has 16 divisors (see below), whose sum is σ = 2371466160. Its totient is φ = 526145920.

The previous prime is 1316422981. The next prime is 1316423011. The reversal of 1316422990 is 992246131.

It is a congruent 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, 39691 + ... + 64870.

It is an arithmetic number, because the mean of its divisors is an integer number (148216635).

Almost surely, 21316422990 is an apocalyptic number.

1316422990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1316422990 is a deficient number, since it is larger than the sum of its proper divisors (1055043170).

1316422990 is a wasteful number, since it uses less digits than its factorization.

1316422990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105827.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1316422990 is about 36282.5438744309. The cubic root of 1316422990 is about 1095.9695450139.

The spelling of 1316422990 in words is "one billion, three hundred sixteen million, four hundred twenty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 1259 2518 6295 12590 104561 209122 522805 1045610 131642299 263284598 658211495 1316422990