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12023022330 = 23251131391757
BaseRepresentation
bin10110011001010000…
…01100001011111010
31011000220102211001100
423030220030023322
5144110343203310
65305011032230
7603641001144
oct131450141372
934026384040
1012023022330
11510a7566a0
1223b659b676
131197b657c7
14820ad1c94
154a57bbec0
hex2cca0c2fa

12023022330 has 96 divisors (see below), whose sum is σ = 35201806848. Its totient is φ = 2820643200.

The previous prime is 12023022329. The next prime is 12023022337. The reversal of 12023022330 is 3322032021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12023022337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165189 + ... + 226568.

It is an arithmetic number, because the mean of its divisors is an integer number (366685488).

Almost surely, 212023022330 is an apocalyptic number.

12023022330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12023022330 is an abundant number, since it is smaller than the sum of its proper divisors (23178784518).

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

12023022330 is a wasteful number, since it uses less digits than its factorization.

12023022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391812 (or 391809 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12023022330 its reverse (3322032021), we get a palindrome (15345054351).

The spelling of 12023022330 in words is "twelve billion, twenty-three million, twenty-two thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 31 33 45 55 62 66 90 93 99 110 155 165 186 198 279 310 330 341 465 495 558 682 930 990 1023 1395 1705 2046 2790 3069 3410 5115 6138 10230 15345 30690 391757 783514 1175271 1958785 2350542 3525813 3917570 4309327 5876355 7051626 8618654 11752710 12144467 12927981 17629065 21546635 24288934 25855962 35258130 36433401 38783943 43093270 60722335 64639905 72866802 77567886 109300203 121444670 129279810 133589137 182167005 193919715 218600406 267178274 364334010 387839430 400767411 546501015 667945685 801534822 1093002030 1202302233 1335891370 2003837055 2404604466 4007674110 6011511165 12023022330