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3815628190988 = 222092945578243
BaseRepresentation
bin110111100001100101001…
…010011011010100001100
3111111202210200121101011012
4313201211022123110030
51000003401304102423
612040513030144352
7542445552330125
oct67414512332414
914452720541135
103815628190988
111241220705699
125175b21b20b8
13218a73511963
14d296aa8704c
15693bea86078
hex3786529b50c

3815628190988 has 12 divisors (see below), whose sum is σ = 6677668528440. Its totient is φ = 1907722897152.

The previous prime is 3815628190963. The next prime is 3815628190993. The reversal of 3815628190988 is 8890918265183.

It is a super-2 number, since 2×38156281909882 (a number of 26 digits) contains 22 as substring.

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, 22705406 + ... + 22872837.

It is an arithmetic number, because the mean of its divisors is an integer number (556472377370).

Almost surely, 23815628190988 is an apocalyptic number.

It is an amenable number.

3815628190988 is a deficient number, since it is larger than the sum of its proper divisors (2862040337452).

3815628190988 is a wasteful number, since it uses less digits than its factorization.

3815628190988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45599176 (or 45599174 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 68.

The spelling of 3815628190988 in words is "three trillion, eight hundred fifteen billion, six hundred twenty-eight million, one hundred ninety thousand, nine hundred eighty-eight".

Divisors: 1 2 4 20929 41858 83716 45578243 91156486 182312972 953907047747 1907814095494 3815628190988