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2131042662 = 23377197841
BaseRepresentation
bin111111100000101…
…0010000101100110
312111111221011222000
41333001102011212
513331021331122
6551243350130
7103544364240
oct17701220546
95444834860
102131042662
119a3a10991
124b5822346
1327c6695b8
1416304b090
15c714a0ac
hex7f052166

2131042662 has 64 divisors (see below), whose sum is σ = 5420390400. Its totient is φ = 607944960.

The previous prime is 2131042561. The next prime is 2131042681. The reversal of 2131042662 is 2662401312.

It is a super-3 number, since 3×21310426623 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267862 + ... + 275702.

It is an arithmetic number, because the mean of its divisors is an integer number (84693600).

Almost surely, 22131042662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131042662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2710195200).

2131042662 is an abundant number, since it is smaller than the sum of its proper divisors (3289347738).

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

2131042662 is a wasteful number, since it uses less digits than its factorization.

2131042662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8578 (or 8572 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2131042662 is about 46163.2176304902. The cubic root of 2131042662 is about 1286.8582605356.

Adding to 2131042662 its reverse (2662401312), we get a palindrome (4793443974).

The spelling of 2131042662 in words is "two billion, one hundred thirty-one million, forty-two thousand, six hundred sixty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 719 1438 2157 4314 5033 6471 7841 10066 12942 15099 15682 19413 23523 30198 38826 45297 47046 54887 70569 90594 109774 135891 141138 164661 211707 271782 329322 423414 493983 987966 1481949 2963898 5637679 11275358 16913037 33826074 39463753 50739111 78927506 101478222 118391259 152217333 236782518 304434666 355173777 710347554 1065521331 2131042662