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385115247652 = 22129774231929
BaseRepresentation
bin1011001101010101010…
…10000101010000100100
31100211001100021121100211
411212222222011100210
522302204000411102
6452530340145204
736552341410402
oct5465252052044
91324040247324
10385115247652
11139365576683
126277a398204
132a415944085
14148d53bc472
15a03ec9b7d7
hex59aaa85424

385115247652 has 12 divisors (see below), whose sum is σ = 674471315980. Its totient is φ = 192409157376.

The previous prime is 385115247641. The next prime is 385115247667. The reversal of 385115247652 is 256742511583.

It can be written as a sum of positive squares in 2 ways, for example, as 310621187556 + 74494060096 = 557334^2 + 272936^2 .

It is a super-2 number, since 2×3851152476522 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 385115247596 and 385115247605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37110777 + ... + 37121152.

Almost surely, 2385115247652 is an apocalyptic number.

It is an amenable number.

385115247652 is a deficient number, since it is larger than the sum of its proper divisors (289356068328).

385115247652 is a wasteful number, since it uses less digits than its factorization.

385115247652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74233230 (or 74233228 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 49.

The spelling of 385115247652 in words is "three hundred eighty-five billion, one hundred fifteen million, two hundred forty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 1297 2594 5188 74231929 148463858 296927716 96278811913 192557623826 385115247652