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90073214884 = 221500612
BaseRepresentation
bin101001111100011001…
…0000010111110100100
322121111100122102001201
41103320302002332210
52433432220334014
6105213513332244
76336045460012
oct1237062027644
9277440572051
1090073214884
1135221a88564
1215559407084
1386560481b3
1445069198b2
1525229dee74
hex14f8c82fa4

90073214884 has 9 divisors (see below), whose sum is σ = 157629176481. Its totient is φ = 45036307320.

The previous prime is 90073214879. The next prime is 90073214893. The reversal of 90073214884 is 48841237009.

The square root of 90073214884 is 300122.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 78692592484 + 11380622400 = 280522^2 + 106680^2 .

It is a super-2 number, since 2×900732148842 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 525214 + ... + 675274.

Almost surely, 290073214884 is an apocalyptic number.

90073214884 is the 300122-nd square number.

It is an amenable number.

90073214884 is a deficient number, since it is larger than the sum of its proper divisors (67555961597).

90073214884 is an frugal number, since it uses more digits than its factorization.

90073214884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300126 (or 150063 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 90073214884 in words is "ninety billion, seventy-three million, two hundred fourteen thousand, eight hundred eighty-four".

Divisors: 1 2 4 150061 300122 600244 22518303721 45036607442 90073214884