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2942724100969 = 29214923972
BaseRepresentation
bin101010110100101000000…
…001100101001101101001
3101102022200111120010201101
4222310220001211031221
5341203144332212334
610131511354121401
7422414306101522
oct52645001451551
911368614503641
102942724100969
11a35003047034
123b63a0420261
131846615773a3
14a260014b849
1551831237214
hex2ad28065369

2942724100969 has 27 divisors (see below), whose sum is σ = 3076036192047. Its totient is φ = 2815073287488.

The previous prime is 2942724100961. The next prime is 2942724100997. The reversal of 2942724100969 is 9690014272492.

The square root of 2942724100969 is 1715437.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 2145653688025 + 797070412944 = 1464805^2 + 892788^2 .

It is not a de Polignac number, because 2942724100969 - 23 = 2942724100961 is a prime.

It is a super-2 number, since 2×29427241009692 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942724100961) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7412403079 + ... + 7412403475.

Almost surely, 22942724100969 is an apocalyptic number.

2942724100969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2942724100969 is the 1715437-th square number.

2942724100969 is the 857719-th centered octagonal number.

It is an amenable number.

2942724100969 is a deficient number, since it is larger than the sum of its proper divisors (133312091078).

2942724100969 is an frugal number, since it uses more digits than its factorization.

2942724100969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 2942724100969 in words is "two trillion, nine hundred forty-two billion, seven hundred twenty-four million, one hundred thousand, nine hundred sixty-nine".

Divisors: 1 29 149 397 841 4321 11513 22201 59153 125309 157609 333877 643829 1715437 4570661 8813797 18671041 23483741 49747673 132549169 255600113 681028489 3499077409 7412403277 19749826181 101473244861 2942724100969