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12542070008 = 23132171912857
BaseRepresentation
bin10111010111001000…
…01100110011111000
31012101002010011121102
423223210030303320
5201141232220013
65432312030532
7622542556526
oct135344146370
935332104542
1012542070008
115356742916
122520392448
13124b559700
1486da05316
154d6148d58
hex2eb90ccf8

12542070008 has 96 divisors (see below), whose sum is σ = 27113045760. Its totient is φ = 5417717760.

The previous prime is 12542069999. The next prime is 12542070019. The reversal of 12542070008 is 80007024521.

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, 4388516 + ... + 4391372.

It is an arithmetic number, because the mean of its divisors is an integer number (282427560).

Almost surely, 212542070008 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 12542070008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13556522880).

12542070008 is an abundant number, since it is smaller than the sum of its proper divisors (14570975752).

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

12542070008 is a wasteful number, since it uses less digits than its factorization.

12542070008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 12542070008 its reverse (80007024521), we get a palindrome (92549094529).

The spelling of 12542070008 in words is "twelve billion, five hundred forty-two million, seventy thousand, eight".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 169 191 221 338 382 442 676 764 884 1352 1528 1768 2483 2857 2873 3247 4966 5714 5746 6494 9932 11428 11492 12988 19864 22856 22984 25976 32279 37141 42211 48569 64558 74282 84422 97138 129116 148564 168844 194276 258232 297128 337688 388552 482833 545687 548743 631397 965666 1091374 1097486 1262794 1931332 2182748 2194972 2525588 3862664 4365496 4389944 5051176 7093931 8208161 9276679 14187862 16416322 18553358 28375724 32832644 37106716 56751448 65665288 74213432 92221103 120596827 184442206 241193654 368884412 482387308 737768824 964774616 1567758751 3135517502 6271035004 12542070008