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23010211020 = 22352311165947
BaseRepresentation
bin10101011011100000…
…111111010011001100
32012101121202211110210
4111123200333103030
5334111103223040
614323140402420
71443133365216
oct253340772314
965347684423
1023010211020
119838734125
1245620a6410
132229225aa4
141183dc95b6
158ea17a480
hex55b83f4cc

23010211020 has 48 divisors (see below), whose sum is σ = 64456858368. Its totient is φ = 6133364160.

The previous prime is 23010211013. The next prime is 23010211027. The reversal of 23010211020 is 2011201032.

It is an interprime number because it is at equal distance from previous prime (23010211013) and next prime (23010211027).

It is a super-2 number, since 2×230102110202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23010210987 and 23010211005.

It is not an unprimeable number, because it can be changed into a prime (23010211027) 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, 55687 + ... + 221633.

It is an arithmetic number, because the mean of its divisors is an integer number (1342851216).

Almost surely, 223010211020 is an apocalyptic number.

23010211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23010211020 is an abundant number, since it is smaller than the sum of its proper divisors (41446647348).

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

23010211020 is a wasteful number, since it uses less digits than its factorization.

23010211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168270 (or 168268 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23010211020 its reverse (2011201032), we get a palindrome (25021412052).

The spelling of 23010211020 in words is "twenty-three billion, ten million, two hundred eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2311 4622 6933 9244 11555 13866 23110 27732 34665 46220 69330 138660 165947 331894 497841 663788 829735 995682 1659470 1991364 2489205 3318940 4978410 9956820 383503517 767007034 1150510551 1534014068 1917517585 2301021102 3835035170 4602042204 5752552755 7670070340 11505105510 23010211020