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23401802479 = 1123531745231
BaseRepresentation
bin10101110010110110…
…110010101011101111
32020101220121201222011
4111302312302223233
5340411330134404
614430045502051
71455630016246
oct256266625357
966356551864
1023401802479
119a19786630
124651271927
13228c3b2003
1411c000195d
1591e72c604
hex572db2aef

23401802479 has 16 divisors (see below), whose sum is σ = 27141848064. Its totient is φ = 19965431200.

The previous prime is 23401802423. The next prime is 23401802483. The reversal of 23401802479 is 97420810432.

It is not a de Polignac number, because 23401802479 - 217 = 23401671407 is a prime.

It is a super-2 number, since 2×234018024792 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401802779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859207 + ... + 886024.

It is an arithmetic number, because the mean of its divisors is an integer number (1696365504).

Almost surely, 223401802479 is an apocalyptic number.

23401802479 is a deficient number, since it is larger than the sum of its proper divisors (3740045585).

23401802479 is a wasteful number, since it uses less digits than its factorization.

23401802479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745318.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 23401802479 in words is "twenty-three billion, four hundred one million, eight hundred two thousand, four hundred seventy-nine".

Divisors: 1 11 23 53 253 583 1219 13409 1745231 19197541 40140313 92497243 441543443 1017469673 2127436589 23401802479