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123422313770 = 2572376807629
BaseRepresentation
bin111001011110010001…
…0110000110100101010
3102210120111212011102022
41302330202300310222
54010232103020040
6132411024304442
711626343233400
oct1627442606452
9383514764368
10123422313770
1148385751108
121bb05a72122
13b83c2237c2
145d8ba81470
1533256696b5
hex1cbc8b0d2a

123422313770 has 48 divisors (see below), whose sum is σ = 265415878440. Its totient is φ = 41172534144.

The previous prime is 123422313661. The next prime is 123422313793. The reversal of 123422313770 is 77313224321.

It can be written as a sum of positive squares in 4 ways, for example, as 114032509969 + 9389803801 = 337687^2 + 96901^2 .

It is a super-2 number, since 2×1234223137702 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 123422313770.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3385685 + ... + 3421944.

Almost surely, 2123422313770 is an apocalyptic number.

123422313770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123422313770 is an abundant number, since it is smaller than the sum of its proper divisors (141993564670).

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

123422313770 is a wasteful number, since it uses less digits than its factorization.

123422313770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807687 (or 6807680 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 123422313770 in words is "one hundred twenty-three billion, four hundred twenty-two million, three hundred thirteen thousand, seven hundred seventy".

Divisors: 1 2 5 7 10 14 35 37 49 70 74 98 185 245 259 370 490 518 1295 1813 2590 3626 9065 18130 6807629 13615258 34038145 47653403 68076290 95306806 238267015 251882273 333573821 476534030 503764546 667147642 1259411365 1667869105 1763175911 2518822730 3335738210 3526351822 8815879555 12342231377 17631759110 24684462754 61711156885 123422313770