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23000300440 = 23513233318959
BaseRepresentation
bin10101011010111011…
…001011101110011000
32012100221010022201021
4111122323023232120
5334101034103230
614322144132224
71442653220335
oct253273135630
965327108637
1023000300440
119833085167
12455a907074
132227165b40
14118296998c
158e936dc7a
hex55aecbb98

23000300440 has 64 divisors (see below), whose sum is σ = 55758326400. Its totient is φ = 8488330752.

The previous prime is 23000300437. The next prime is 23000300471. The reversal of 23000300440 is 4400300032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1203681 + ... + 1222639.

It is an arithmetic number, because the mean of its divisors is an integer number (871223850).

Almost surely, 223000300440 is an apocalyptic number.

23000300440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23000300440 is an abundant number, since it is smaller than the sum of its proper divisors (32758025960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23000300440 is a wasteful number, since it uses less digits than its factorization.

23000300440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21316 (or 21312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 23000300440 its reverse (4400300032), we get a palindrome (27400600472).

The spelling of 23000300440 in words is "twenty-three billion, three hundred thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2333 4666 9332 11665 18664 18959 23330 30329 37918 46660 60658 75836 93320 94795 121316 151645 151672 189590 242632 246467 303290 379180 492934 606580 758360 985868 1213160 1232335 1971736 2464670 4929340 9858680 44231347 88462694 176925388 221156735 353850776 442313470 575007511 884626940 1150015022 1769253880 2300030044 2875037555 4600060088 5750075110 11500150220 23000300440