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23221205004401 = 1723471263601513
BaseRepresentation
bin1010100011110100110111…
…01011001111000001110001
310001012220222200222022010122
411101322123223033001301
511020424011440120101
6121215401352340025
74614451051550165
oct521723353170161
9101186880868118
1023221205004401
11744306a938638
1227305126a4615
13cc599a364991
145a3cab590ca5
152a408449351b
hex151e9bacf071

23221205004401 has 16 divisors (see below), whose sum is σ = 26202040994304. Its totient is φ = 20460235682304.

The previous prime is 23221205004337. The next prime is 23221205004419. The reversal of 23221205004401 is 10440050212232.

It is not a de Polignac number, because 23221205004401 - 26 = 23221205004337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221205004001) 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, 631782380 + ... + 631819133.

It is an arithmetic number, because the mean of its divisors is an integer number (1637627562144).

Almost surely, 223221205004401 is an apocalyptic number.

It is an amenable number.

23221205004401 is a deficient number, since it is larger than the sum of its proper divisors (2980835989903).

23221205004401 is a wasteful number, since it uses less digits than its factorization.

23221205004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263601600.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 23221205004401 its reverse (10440050212232), we get a palindrome (33661255216633).

The spelling of 23221205004401 in words is "twenty-three trillion, two hundred twenty-one billion, two hundred five million, four thousand, four hundred one".

Divisors: 1 17 23 47 391 799 1081 18377 1263601513 21481225721 29062834799 59389271111 494068191583 1009617608887 1365953235553 23221205004401