Search a number
-
+
1990250664314 = 211206951437137
BaseRepresentation
bin11100111101100100001…
…011110001000101111010
321001021011222202021122012
4130331210023301011322
5230102013132224224
64122150350525522
7263535160342613
oct34754413610572
97037158667565
101990250664314
116a8073683670
12281882b068a2
131158ab78caa3
146c485b3ac0a
1536b8713580e
hex1cf642f117a

1990250664314 has 16 divisors (see below), whose sum is σ = 3256797001536. Its totient is φ = 904652952000.

The previous prime is 1990250664307. The next prime is 1990250664319. The reversal of 1990250664314 is 4134660520991.

It is a super-2 number, since 2×19902506643142 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1990250664319) 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, 4334354 + ... + 4771490.

It is an arithmetic number, because the mean of its divisors is an integer number (203549812596).

Almost surely, 21990250664314 is an apocalyptic number.

1990250664314 is a deficient number, since it is larger than the sum of its proper divisors (1266546337222).

1990250664314 is a wasteful number, since it uses less digits than its factorization.

1990250664314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644101.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 1990250664314 in words is "one trillion, nine hundred ninety billion, two hundred fifty million, six hundred sixty-four thousand, three hundred fourteen".

Divisors: 1 2 11 22 206951 413902 437137 874274 2276461 4552922 4808507 9617014 90465939287 180931878574 995125332157 1990250664314