Search a number
-
+
38675772685972 = 22172158926344961
BaseRepresentation
bin10001100101100111001111…
…01100010011111010010100
312001221100221002121111011101
420302303213230103322110
520032130440301422342
6214131223225115444
711101142462433412
oct1062634754237224
9161840832544141
1038675772685972
1111361337451304
12440775a028b84
131877157075466
14979cbb4422b2
154710a3da33b7
hex232ce7b13e94

38675772685972 has 24 divisors (see below), whose sum is σ = 71667253927080. Its totient is φ = 18199519887360.

The previous prime is 38675772685969. The next prime is 38675772685973. The reversal of 38675772685972 is 27958627757683.

It can be written as a sum of positive squares in 4 ways, for example, as 12855695514256 + 25820077171716 = 3585484^2 + 5081346^2 .

It is a super-2 number, since 2×386757726859722 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38675772685973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11704429 + ... + 14640532.

It is an arithmetic number, because the mean of its divisors is an integer number (2986135580295).

Almost surely, 238675772685972 is an apocalyptic number.

It is an amenable number.

38675772685972 is a deficient number, since it is larger than the sum of its proper divisors (32991481241108).

38675772685972 is a wasteful number, since it uses less digits than its factorization.

38675772685972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366571 (or 26366569 counting only the distinct ones).

The product of its digits is 14936140800, while the sum is 82.

The spelling of 38675772685972 in words is "thirty-eight trillion, six hundred seventy-five billion, seven hundred seventy-two million, six hundred eighty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 21589 43178 86356 367013 734026 1468052 26344961 52689922 105379844 447864337 895728674 1791457348 568761363029 1137522726058 2275045452116 9668943171493 19337886342986 38675772685972