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1308226894 = 213379132761
BaseRepresentation
bin100110111111001…
…1111010101001110
310101011122210220221
41031332133111032
510134401230034
6333451501554
744263513402
oct11576372516
93334583827
101308226894
11611507257
123061578ba
1317b058770
14c5a63102
1579cb7bb4
hex4df9f54e

1308226894 has 16 divisors (see below), whose sum is σ = 2118881520. Its totient is φ = 602199360.

The previous prime is 1308226879. The next prime is 1308226897. The reversal of 1308226894 is 4986228031.

It is a super-2 number, since 2×13082268942 = 3422915212369774472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1308226894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308226897) 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, 56527 + ... + 76234.

It is an arithmetic number, because the mean of its divisors is an integer number (132430095).

Almost surely, 21308226894 is an apocalyptic number.

1308226894 is a deficient number, since it is larger than the sum of its proper divisors (810654626).

1308226894 is a wasteful number, since it uses less digits than its factorization.

1308226894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133155.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1308226894 is about 36169.4193207466. The cubic root of 1308226894 is about 1093.6902931913.

The spelling of 1308226894 in words is "one billion, three hundred eight million, two hundred twenty-six thousand, eight hundred ninety-four".

Divisors: 1 2 13 26 379 758 4927 9854 132761 265522 1725893 3451786 50316419 100632838 654113447 1308226894