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23430015213 = 3111722456749
BaseRepresentation
bin10101110100100010…
…011010100011101101
32020110212201002120020
4111310202122203231
5340441040441323
614432534312353
71456421562153
oct256442324355
966425632506
1023430015213
119a336a6240
12465a7b86b9
1322951ac637
1411c3a673d3
15921e51ae3
hex57489a8ed

23430015213 has 24 divisors (see below), whose sum is σ = 36202668000. Its totient is φ = 13364709120.

The previous prime is 23430015131. The next prime is 23430015221. The reversal of 23430015213 is 31251003432.

It is not a de Polignac number, because 23430015213 - 210 = 23430014189 is a prime.

It is a super-2 number, since 2×234300152132 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430010213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1218838 + ... + 1237911.

It is an arithmetic number, because the mean of its divisors is an integer number (1508444500).

Almost surely, 223430015213 is an apocalyptic number.

It is an amenable number.

23430015213 is a deficient number, since it is larger than the sum of its proper divisors (12772652787).

23430015213 is a wasteful number, since it uses less digits than its factorization.

23430015213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456797 (or 2456780 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 23430015213 its reverse (31251003432), we get a palindrome (54681018645).

The spelling of 23430015213 in words is "twenty-three billion, four hundred thirty million, fifteen thousand, two hundred thirteen".

Divisors: 1 3 11 17 33 51 187 289 561 867 3179 9537 2456749 7370247 27024239 41764733 81072717 125294199 459412063 710000461 1378236189 2130001383 7810005071 23430015213