Search a number
-
+
31368402288 = 2432233934919
BaseRepresentation
bin11101001101101100…
…111101010101110000
32222222010011221102100
4131031230331111300
51003220302333123
622224353420400
72160224006616
oct351554752560
988863157370
1031368402288
1112337710a13
1260b526a700
132c5ba2c5b2
1417380936b6
15c38d2b643
hex74db3d570

31368402288 has 60 divisors (see below), whose sum is σ = 88164825840. Its totient is φ = 10411246848.

The previous prime is 31368402287. The next prime is 31368402311. The reversal of 31368402288 is 88220486313.

31368402288 is a `hidden beast` number, since 3 + 1 + 368 + 4 + 0 + 2 + 288 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31368402287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433908 + ... + 501011.

It is an arithmetic number, because the mean of its divisors is an integer number (1469413764).

Almost surely, 231368402288 is an apocalyptic number.

It is an amenable number.

31368402288 is an abundant number, since it is smaller than the sum of its proper divisors (56796423552).

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

31368402288 is a wasteful number, since it uses less digits than its factorization.

31368402288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935166 (or 935157 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 31368402288 in words is "thirty-one billion, three hundred sixty-eight million, four hundred two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 233 466 699 932 1398 1864 2097 2796 3728 4194 5592 8388 11184 16776 33552 934919 1869838 2804757 3739676 5609514 7479352 8414271 11219028 14958704 16828542 22438056 33657084 44876112 67314168 134628336 217836127 435672254 653508381 871344508 1307016762 1742689016 1960525143 2614033524 3485378032 3921050286 5228067048 7842100572 10456134096 15684201144 31368402288