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23489007520 = 2551131430517
BaseRepresentation
bin10101111000000011…
…011100111110100000
32020121222201012210111
4111320003130332200
5341101141220040
614442442541104
71461036161326
oct257003347640
966558635714
1023489007520
119a63a29010
124676507794
1322a4495a24
1411cb821d16
15927205dea
hex5780dcfa0

23489007520 has 96 divisors (see below), whose sum is σ = 62490548736. Its totient is φ = 8265907200.

The previous prime is 23489007419. The next prime is 23489007523. The reversal of 23489007520 is 2570098432.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (23489007523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160699 + ... + 269818.

It is an arithmetic number, because the mean of its divisors is an integer number (650943216).

Almost surely, 223489007520 is an apocalyptic number.

23489007520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23489007520 is an abundant number, since it is smaller than the sum of its proper divisors (39001541216).

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

23489007520 is a wasteful number, since it uses less digits than its factorization.

23489007520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430574 (or 430566 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 23489007520 in words is "twenty-three billion, four hundred eighty-nine million, seven thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 80 88 110 124 155 160 176 220 248 310 341 352 440 496 620 682 880 992 1240 1364 1705 1760 2480 2728 3410 4960 5456 6820 10912 13640 27280 54560 430517 861034 1722068 2152585 3444136 4305170 4735687 6888272 8610340 9471374 13346027 13776544 17220680 18942748 23678435 26692054 34441360 37885496 47356870 53384108 66730135 68882720 75770992 94713740 106768216 133460270 146806297 151541984 189427480 213536432 266920540 293612594 378854960 427072864 533841080 587225188 734031485 757709920 1067682160 1174450376 1468062970 2135364320 2348900752 2936125940 4697801504 5872251880 11744503760 23489007520