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38966026450 = 25213371620209
BaseRepresentation
bin100100010010100011…
…100110000011010010
310201120121110020102211
4210102203212003102
51114300300321300
625522321102334
72546420521441
oct442243460322
9121517406384
1038966026450
111558634044a
1276757879aa
13389caab8b0
141c59138d58
151030d444ba
hex9128e60d2

38966026450 has 48 divisors (see below), whose sum is σ = 80161509960. Its totient is φ = 13998597120.

The previous prime is 38966026441. The next prime is 38966026457. The reversal of 38966026450 is 5462066983.

It can be written as a sum of positive squares in 12 ways, for example, as 6174973561 + 32791052889 = 78581^2 + 181083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38966026394 and 38966026403.

It is not an unprimeable number, because it can be changed into a prime (38966026457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786055 + ... + 834154.

Almost surely, 238966026450 is an apocalyptic number.

38966026450 is an abundant number, since it is smaller than the sum of its proper divisors (41195483510).

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

38966026450 is a wasteful number, since it uses less digits than its factorization.

38966026450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620271 (or 1620266 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 38966026450 in words is "thirty-eight billion, nine hundred sixty-six million, twenty-six thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 37 50 65 74 130 185 325 370 481 650 925 962 1850 2405 4810 12025 24050 1620209 3240418 8101045 16202090 21062717 40505225 42125434 59947733 81010450 105313585 119895466 210627170 299738665 526567925 599477330 779320529 1053135850 1498693325 1558641058 2997386650 3896602645 7793205290 19483013225 38966026450