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12425312124 = 223219129114071
BaseRepresentation
bin10111001001001101…
…10011011101111100
31012001221102020220100
423210212303131330
5200421334441444
65412541321100
7616624260531
oct134446633574
935057366810
1012425312124
1152a68459a5
1224a9266190
1312302c93c4
1485c2d0d88
154cac83e69
hex2e49b377c

12425312124 has 72 divisors (see below), whose sum is σ = 33089463680. Its totient is φ = 3920464800.

The previous prime is 12425312093. The next prime is 12425312153. The reversal of 12425312124 is 42121352421.

12425312124 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 531 + 2 + 124 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876009 + ... + 890079.

Almost surely, 212425312124 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 12425312124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16544731840).

12425312124 is an abundant number, since it is smaller than the sum of its proper divisors (20664151556).

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

12425312124 is a wasteful number, since it uses less digits than its factorization.

12425312124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15391 (or 15386 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 12425312124 its reverse (42121352421), we get a palindrome (54546664545).

The spelling of 12425312124 in words is "twelve billion, four hundred twenty-five million, three hundred twelve thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 1291 2582 3873 5164 7746 11619 14071 15492 23238 24529 28142 42213 46476 49058 56284 73587 84426 98116 126639 147174 168852 220761 253278 267349 294348 441522 506556 534698 802047 883044 1069396 1604094 2406141 3208188 4812282 9624564 18165661 36331322 54496983 72662644 108993966 163490949 217987932 326981898 345147559 653963796 690295118 1035442677 1380590236 2070885354 3106328031 4141770708 6212656062 12425312124