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23304440120 = 23513199724317
BaseRepresentation
bin10101101101000011…
…011000100100111000
32020011010102012220212
4111231003120210320
5340211414040440
614412251010252
71453335321053
oct255503304470
966133365825
1023304440120
119979826875
124624739988
132275182c50
1411b10d9a9a
15915de9465
hex56d0d8938

23304440120 has 128 divisors (see below), whose sum is σ = 60055732800. Its totient is φ = 8067465216.

The previous prime is 23304440119. The next prime is 23304440129. The reversal of 23304440120 is 2104440332.

It is a super-2 number, since 2×233044401202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23304440129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 946202 + ... + 970518.

Almost surely, 223304440120 is an apocalyptic number.

23304440120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23304440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30027866400).

23304440120 is an abundant number, since it is smaller than the sum of its proper divisors (36751292680).

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

23304440120 is a wasteful number, since it uses less digits than its factorization.

23304440120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24457 (or 24453 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23304440120 its reverse (2104440332), we get a palindrome (25408880452).

The spelling of 23304440120 in words is "twenty-three billion, three hundred four million, four hundred forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 19 20 26 38 40 52 65 76 95 97 104 130 152 190 194 247 260 380 388 485 494 520 760 776 970 988 1235 1261 1843 1940 1976 2470 2522 3686 3880 4940 5044 6305 7372 9215 9880 10088 12610 14744 18430 23959 24317 25220 36860 47918 48634 50440 73720 95836 97268 119795 121585 191672 194536 239590 243170 316121 462023 479180 486340 632242 924046 958360 972680 1264484 1580605 1848092 2310115 2358749 2528968 3161210 3696184 4620230 4717498 6006299 6322420 9240460 9434996 11793745 12012598 12644840 18480920 18869992 23587490 24025196 30031495 30663737 44816231 47174980 48050392 60062990 61327474 89632462 94349960 120125980 122654948 153318685 179264924 224081155 240251960 245309896 306637370 358529848 448162310 582611003 613274740 896324620 1165222006 1226549480 1792649240 2330444012 2913055015 4660888024 5826110030 11652220060 23304440120