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23400665030405 = 5134313276309217
BaseRepresentation
bin1010101001000011001000…
…10100111001111100000101
310001212002012120200012022102
411110201210110321330011
511031344030221433110
6121434041143441445
74633433202604115
oct524414424717405
9101762176605272
1023400665030405
1175021913a0313
12275b257456285
13100989a169390
145ac85378b045
152a8a895895a5
hex154864539f05

23400665030405 has 32 divisors (see below), whose sum is σ = 30967458998784. Its totient is φ = 16865897158656.

The previous prime is 23400665030371. The next prime is 23400665030429. The reversal of 23400665030405 is 50403056600432.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-23400665030405 is a prime.

It is a super-2 number, since 2×234006650304052 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 554357 + ... + 6863573.

It is an arithmetic number, because the mean of its divisors is an integer number (967733093712).

Almost surely, 223400665030405 is an apocalyptic number.

It is an amenable number.

23400665030405 is a deficient number, since it is larger than the sum of its proper divisors (7566793968379).

23400665030405 is a wasteful number, since it uses less digits than its factorization.

23400665030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310605.

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 23400665030405 in words is "twenty-three trillion, four hundred billion, six hundred sixty-five million, thirty thousand, four hundred five".

Divisors: 1 5 13 43 65 215 559 1327 2795 6635 17251 57061 86255 285305 741793 3708965 6309217 31546085 82019821 271296331 410099105 1356481655 3526852303 8372330959 17634261515 41861654795 108840302467 360010231237 544201512335 1800051156185 4680133006081 23400665030405