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13893450624 = 273238331489
BaseRepresentation
bin11001111000001110…
…10011101110000000
31022212020222102022100
430330013103232000
5211423210404444
610214344510400
71001202244644
oct147407235600
938766872270
1013893450624
11598a5440a9
122838a7b400
131405514301
1495b29cc24
15564ad7e69
hex33c1d3b80

13893450624 has 96 divisors (see below), whose sum is σ = 40085510400. Its totient is φ = 4618911744.

The previous prime is 13893450611. The next prime is 13893450709. The reversal of 13893450624 is 42605439831.

13893450624 is a `hidden beast` number, since 1 + 38 + 93 + 4 + 506 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 13893450624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425472 + ... + 456960.

It is an arithmetic number, because the mean of its divisors is an integer number (417557400).

Almost surely, 213893450624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13893450624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20042755200).

13893450624 is an abundant number, since it is smaller than the sum of its proper divisors (26192059776).

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

13893450624 is a wasteful number, since it uses less digits than its factorization.

13893450624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31892 (or 31877 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 13893450624 in words is "thirteen billion, eight hundred ninety-three million, four hundred fifty thousand, six hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 383 384 576 766 1149 1152 1532 2298 3064 3447 4596 6128 6894 9192 12256 13788 18384 24512 27576 31489 36768 49024 55152 62978 73536 94467 110304 125956 147072 188934 220608 251912 283401 377868 441216 503824 566802 755736 1007648 1133604 1511472 2015296 2267208 3022944 4030592 4534416 6045888 9068832 12060287 12091776 18137664 24120574 36180861 36275328 48241148 72361722 96482296 108542583 144723444 192964592 217085166 289446888 385929184 434170332 578893776 771858368 868340664 1157787552 1543716736 1736681328 2315575104 3473362656 4631150208 6946725312 13893450624