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90690605276 = 22312296434967
BaseRepresentation
bin101010001110110010…
…1001101000011011100
322200002101101002110112
41110131211031003130
52441213243332101
6105355050225152
76360253266005
oct1243545150334
9280071332415
1090690605276
1135509534057
12156b01251b8
138723c2245b
14456490c1ac
15255bce56bb
hex151d94d0dc

90690605276 has 48 divisors (see below), whose sum is σ = 164832675840. Its totient is φ = 43614192960.

The previous prime is 90690605261. The next prime is 90690605281. The reversal of 90690605276 is 67250609609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18256145 + ... + 18261111.

It is an arithmetic number, because the mean of its divisors is an integer number (3434014080).

Almost surely, 290690605276 is an apocalyptic number.

It is an amenable number.

90690605276 is a deficient number, since it is larger than the sum of its proper divisors (74142070564).

90690605276 is a wasteful number, since it uses less digits than its factorization.

90690605276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5872 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 90690605276 in words is "ninety billion, six hundred ninety million, six hundred five thousand, two hundred seventy-six".

Divisors: 1 2 4 31 62 124 229 458 643 916 1286 2572 4967 7099 9934 14198 19868 19933 28396 39866 79732 147247 153977 294494 307954 588988 615908 1137443 2274886 3193781 4549772 4564657 6387562 9129314 12775124 18258628 35260733 70521466 99007211 141042932 198014422 396028844 731375849 1462751698 2925503396 22672651319 45345302638 90690605276