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48931473894831 = 32116763291165583
BaseRepresentation
bin10110010000000101111110…
…00111101010110110101111
320102020210200112210000101200
423020002333013222312233
522403143124304113311
6252022450410340543
713210116352402653
oct1310027707526657
9212223615700350
1048931473894831
11146557a3411130
1255a32b772a753
13213c2ab491b18
14c12420214a63
1559cc473c7556
hex2c80bf1eadaf

48931473894831 has 48 divisors (see below), whose sum is σ = 78267380405760. Its totient is φ = 29208179468160.

The previous prime is 48931473894817. The next prime is 48931473894887. The reversal of 48931473894831 is 13849837413984.

48931473894831 is a `hidden beast` number, since 4 + 8 + 9 + 3 + 1 + 473 + 89 + 48 + 31 = 666.

It is not a de Polignac number, because 48931473894831 - 213 = 48931473886639 is a prime.

It is a super-2 number, since 2×489314738948312 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48931473894831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48931473893831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41397466 + ... + 42563048.

It is an arithmetic number, because the mean of its divisors is an integer number (1630570425120).

Almost surely, 248931473894831 is an apocalyptic number.

48931473894831 is a deficient number, since it is larger than the sum of its proper divisors (29335906510929).

48931473894831 is a wasteful number, since it uses less digits than its factorization.

48931473894831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171996 (or 1171993 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 72.

The spelling of 48931473894831 in words is "forty-eight trillion, nine hundred thirty-one billion, four hundred seventy-three million, eight hundred ninety-four thousand, eight hundred thirty-one".

Divisors: 1 3 9 11 33 67 99 201 603 737 2211 6329 6633 18987 56961 69619 208857 424043 626571 1165583 1272129 3496749 3816387 4664473 10490247 12821413 13993419 38464239 41980257 78094061 115392717 234282183 702846549 859034671 2577104013 7376974807 7731312039 22130924421 66392773263 81146722877 243440168631 494257312069 730320505893 1482771936207 4448315808621 5436830432759 16310491298277 48931473894831