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20315102365252 = 22131115873345929
BaseRepresentation
bin1001001111001111110100…
…11101011100011001000100
32122221002211102011011211001
410213213322131130121010
510130320312201142002
6111112343523223044
74164501113646532
oct447477235343104
978832742134731
1020315102365252
11652264a742932
122341252817a84
13b44923c1c936
1450338302d152
15253698329a87
hex1279fa75c644

20315102365252 has 24 divisors (see below), whose sum is σ = 35825916440160. Its totient is φ = 10079139670080.

The previous prime is 20315102365249. The next prime is 20315102365301. The reversal of 20315102365252 is 25256320151302.

It is a super-2 number, since 2×203151023652522 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4398624 + ... + 7744552.

It is an arithmetic number, because the mean of its divisors is an integer number (1492746518340).

Almost surely, 220315102365252 is an apocalyptic number.

It is an amenable number.

20315102365252 is a deficient number, since it is larger than the sum of its proper divisors (15510814074908).

20315102365252 is a wasteful number, since it uses less digits than its factorization.

20315102365252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357651 (or 3357649 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 20315102365252 in words is "twenty trillion, three hundred fifteen billion, one hundred two million, three hundred sixty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 131 262 524 11587 23174 46348 1517897 3035794 3345929 6071588 6691858 13383716 438316699 876633398 1753266796 38769279323 77538558646 155077117292 5078775591313 10157551182626 20315102365252