Search a number
-
+
31485697096900 = 2252314856970969
BaseRepresentation
bin1110010100010110101011…
…10010100111110011000100
311010111000002100220010200211
413022023111302213303010
513111330201424100100
6150544155104045204
76426523632345634
oct712132562476304
9133430070803624
1031485697096900
11a03a0111a9672
123646180303804
13147511c570687
147abcb72126c4
1539903665b1ba
hex1ca2d5ca7cc4

31485697096900 has 18 divisors (see below), whose sum is σ = 68323962700490. Its totient is φ = 12594278838720.

The previous prime is 31485697096849. The next prime is 31485697096963. The reversal of 31485697096900 is 969079658413.

It can be written as a sum of positive squares in 3 ways, for example, as 4252495616964 + 27233201479936 = 2062158^2 + 5218544^2 .

It is a super-2 number, since 2×314856970969002 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157428485385 + ... + 157428485584.

Almost surely, 231485697096900 is an apocalyptic number.

It is an amenable number.

31485697096900 is an abundant number, since it is smaller than the sum of its proper divisors (36838265603590).

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

31485697096900 is a wasteful number, since it uses less digits than its factorization.

31485697096900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314856970983 (or 314856970976 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 31485697096900 in words is "thirty-one trillion, four hundred eighty-five billion, six hundred ninety-seven million, ninety-six thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 314856970969 629713941938 1259427883876 1574284854845 3148569709690 6297139419380 7871424274225 15742848548450 31485697096900