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13961048724 = 2232789622483
BaseRepresentation
bin11010000000010010…
…01011001010010100
31100000222011202110200
431000021023022110
5212043012024344
610225201420500
71002652645650
oct150011131224
940028152420
1013961048724
115a147145a7
12285763a730
13141652179c
14966257a60
1556a9dc069
hex34024b294

13961048724 has 72 divisors (see below), whose sum is σ = 40785151680. Its totient is φ = 3944045952.

The previous prime is 13961048723. The next prime is 13961048749. The reversal of 13961048724 is 42784016931.

13961048724 is a `hidden beast` number, since 1 + 3 + 9 + 610 + 4 + 8 + 7 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13961048724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961048723) 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, 288814 + ... + 333669.

It is an arithmetic number, because the mean of its divisors is an integer number (566460440).

Almost surely, 213961048724 is an apocalyptic number.

13961048724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13961048724 is an abundant number, since it is smaller than the sum of its proper divisors (26824102956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13961048724 is a wasteful number, since it uses less digits than its factorization.

13961048724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622589 (or 622584 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 13961048724 in words is "thirteen billion, nine hundred sixty-one million, forty-eight thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 89 126 178 252 267 356 534 623 801 1068 1246 1602 1869 2492 3204 3738 5607 7476 11214 22428 622483 1244966 1867449 2489932 3734898 4357381 5602347 7469796 8714762 11204694 13072143 17429524 22409388 26144286 39216429 52288572 55400987 78432858 110801974 156865716 166202961 221603948 332405922 387806909 498608883 664811844 775613818 997217766 1163420727 1551227636 1994435532 2326841454 3490262181 4653682908 6980524362 13961048724