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23030202120 = 2335672864453
BaseRepresentation
bin10101011100101101…
…001111111100001000
32012110000101111002220
4111130231033330020
5334131212431440
614325133054040
71443465326262
oct253455177410
965400344086
1023030202120
119848a487a2
124568927320
132230405143
141186910b32
158ebcc88d0
hex55cb4ff08

23030202120 has 64 divisors (see below), whose sum is σ = 70121833920. Its totient is φ = 6049722624.

The previous prime is 23030202101. The next prime is 23030202121. The reversal of 23030202120 is 2120203032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23030202120.

It is not an unprimeable number, because it can be changed into a prime (23030202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424187 + ... + 1440266.

It is an arithmetic number, because the mean of its divisors is an integer number (1095653655).

Almost surely, 223030202120 is an apocalyptic number.

23030202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030202120 is an abundant number, since it is smaller than the sum of its proper divisors (47091631800).

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

23030202120 is a wasteful number, since it uses less digits than its factorization.

23030202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864534 (or 2864530 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23030202120 its reverse (2120203032), we get a palindrome (25150405152).

The spelling of 23030202120 in words is "twenty-three billion, thirty million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 67 120 134 201 268 335 402 536 670 804 1005 1340 1608 2010 2680 4020 8040 2864453 5728906 8593359 11457812 14322265 17186718 22915624 28644530 34373436 42966795 57289060 68746872 85933590 114578120 171867180 191918351 343734360 383836702 575755053 767673404 959591755 1151510106 1535346808 1919183510 2303020212 2878775265 3838367020 4606040424 5757550530 7676734040 11515101060 23030202120