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23010301213220 = 2251933595196617
BaseRepresentation
bin1010011101101100000001…
…10101000111101000100100
310000110202121110021122002102
411032312000311013220210
511004000044102310340
6120534441512231232
74563303500112416
oct516660065075044
9100422543248072
1023010301213220
117371683180772
1226b767339b518
13cabb29035179
145979c12c49b6
1529d83db36215
hex14ed80d47a24

23010301213220 has 24 divisors (see below), whose sum is σ = 48346630886904. Its totient is φ = 9199358896896.

The previous prime is 23010301213199. The next prime is 23010301213241. The reversal of 23010301213220 is 2231210301032.

It is an interprime number because it is at equal distance from previous prime (23010301213199) and next prime (23010301213241).

It can be written as a sum of positive squares in 4 ways, for example, as 7547459485696 + 15462841727524 = 2747264^2 + 3932282^2 .

It is a super-2 number, since 2×230103012132202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23010301213192 and 23010301213201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297559649 + ... + 297636968.

It is an arithmetic number, because the mean of its divisors is an integer number (2014442953621).

Almost surely, 223010301213220 is an apocalyptic number.

23010301213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23010301213220 is an abundant number, since it is smaller than the sum of its proper divisors (25336329673684).

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

23010301213220 is a wasteful number, since it uses less digits than its factorization.

23010301213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595198559 (or 595198557 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23010301213220 its reverse (2231210301032), we get a palindrome (25241511514252).

The spelling of 23010301213220 in words is "twenty-three trillion, ten billion, three hundred one million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1933 3866 7732 9665 19330 38660 595196617 1190393234 2380786468 2975983085 5951966170 11903932340 1150515060661 2301030121322 4602060242644 5752575303305 11505150606610 23010301213220