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23030401440 = 2535137350219
BaseRepresentation
bin10101011100101110…
…000000100110100000
32012110000202121112010
4111130232000212200
5334131240321230
614325141232520
71443500116344
oct253456004640
965400677463
1023030401440
119849074522
124568a02740
132230474a97
141186963624
158ebd179b0
hex55cb809a0

23030401440 has 96 divisors (see below), whose sum is σ = 73075504320. Its totient is φ = 6096594944.

The previous prime is 23030401411. The next prime is 23030401463. The reversal of 23030401440 is 4410403032.

It is a tau number, because it is divible by the number of its divisors (96).

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, 109350 + ... + 240869.

It is an arithmetic number, because the mean of its divisors is an integer number (761203170).

Almost surely, 223030401440 is an apocalyptic number.

23030401440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030401440 is an abundant number, since it is smaller than the sum of its proper divisors (50045102880).

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

23030401440 is a wasteful number, since it uses less digits than its factorization.

23030401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350374 (or 350366 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23030401440 its reverse (4410403032), we get a palindrome (27440804472).

The spelling of 23030401440 in words is "twenty-three billion, thirty million, four hundred one thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 137 160 240 274 411 480 548 685 822 1096 1370 1644 2055 2192 2740 3288 4110 4384 5480 6576 8220 10960 13152 16440 21920 32880 65760 350219 700438 1050657 1400876 1751095 2101314 2801752 3502190 4202628 5253285 5603504 7004380 8405256 10506570 11207008 14008760 16810512 21013140 28017520 33621024 42026280 47980003 56035040 84052560 95960006 143940009 168105120 191920012 239900015 287880018 383840024 479800030 575760036 719700045 767680048 959600060 1151520072 1439400090 1535360096 1919200120 2303040144 2878800180 3838400240 4606080288 5757600360 7676800480 11515200720 23030401440