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245254354423 = 131922312717891
BaseRepresentation
bin1110010001101001001…
…1000111010111110111
3212110001012100002020021
43210122103013113313
513004240103320143
6304400203550011
723501426421241
oct3443223072767
9773035302207
10245254354423
1195014764511
123b64722b307
131a186b389a0
14bc28441091
1565a63a6ced
hex391a4c75f7

245254354423 has 48 divisors (see below), whose sum is σ = 293179170816. Its totient is φ = 203521792320.

The previous prime is 245254354409. The next prime is 245254354439. The reversal of 245254354423 is 324453452542.

It is a de Polignac number, because none of the positive numbers 2k-245254354423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245254354423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245254354523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13699308 + ... + 13717198.

It is an arithmetic number, because the mean of its divisors is an integer number (6107899392).

Almost surely, 2245254354423 is an apocalyptic number.

245254354423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

245254354423 is a deficient number, since it is larger than the sum of its proper divisors (47924816393).

245254354423 is a wasteful number, since it uses less digits than its factorization.

245254354423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18092 (or 18073 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 43.

The spelling of 245254354423 in words is "two hundred forty-five billion, two hundred fifty-four million, three hundred fifty-four thousand, four hundred twenty-three".

Divisors: 1 13 19 23 127 247 299 361 437 1651 2413 2921 4693 5681 8303 17891 31369 37973 45847 55499 107939 232583 339929 411493 596011 721487 1054481 2272157 4419077 5349409 6458651 7818367 13708253 29538041 43170983 52259611 83962463 101638771 148548973 561222779 679374943 820248677 992932609 1931136649 10663232801 12908123917 18865719571 245254354423