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71313134542752 = 25319725311489841
BaseRepresentation
bin10000001101101111100010…
…000011010101111110100000
3100100111110122221221010110010
4100031233202003111332200
533321343244420332002
6411400445102004520
721010126645053114
oct2015574203257640
9310443587833403
1071313134542752
11207a4804357723
127bb8b68576740
1330a3a5201c21b
14138780759d744
1583a041a9746c
hex40dbe20d5fa0

71313134542752 has 96 divisors (see below), whose sum is σ = 188221680085824. Its totient is φ = 23641019494400.

The previous prime is 71313134542717. The next prime is 71313134542759. The reversal of 71313134542752 is 25724543131317.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (71313134542759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47121352 + ... + 48611192.

It is an arithmetic number, because the mean of its divisors is an integer number (1960642500894).

Almost surely, 271313134542752 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 71313134542752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94110840042912).

71313134542752 is an abundant number, since it is smaller than the sum of its proper divisors (116908545543072).

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

71313134542752 is a wasteful number, since it uses less digits than its factorization.

71313134542752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492582 (or 1492574 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 48.

The spelling of 71313134542752 in words is "seventy-one trillion, three hundred thirteen billion, one hundred thirty-four million, five hundred forty-two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 197 394 591 788 1182 1576 2364 2531 3152 4728 5062 6304 7593 9456 10124 15186 18912 20248 30372 40496 60744 80992 121488 242976 498607 997214 1489841 1495821 1994428 2979682 2991642 3988856 4469523 5959364 5983284 7977712 8939046 11918728 11966568 15955424 17878092 23837456 23933136 35756184 47674912 47866272 71512368 143024736 293498677 586997354 880496031 1173994708 1760992062 2347989416 3521984124 3770787571 4695978832 7043968248 7541575142 9391957664 11312362713 14087936496 15083150284 22624725426 28175872992 30166300568 45249450852 60332601136 90498901704 120665202272 180997803408 361995606816 742845151487 1485690302974 2228535454461 2971380605948 4457070908922 5942761211896 8914141817844 11885522423792 17828283635688 23771044847584 35656567271376 71313134542752