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10121223330 = 2325120193637
BaseRepresentation
bin10010110110100010…
…11001110010100010
3222010100212102021100
421123101121302202
5131212013121310
64352152535230
7505545656511
oct113321316242
928110772240
1010121223330
114324191989
121b656b1516
13c53b5215a
146c02ba678
153e3855ec0
hex25b459ca2

10121223330 has 48 divisors (see below), whose sum is σ = 26337372984. Its totient is φ = 2696716800.

The previous prime is 10121223323. The next prime is 10121223361. The reversal of 10121223330 is 3332212101.

10121223330 is a `hidden beast` number, since 101 + 212 + 23 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8233929081 + 1887294249 = 90741^2 + 43443^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61272 + ... + 154908.

Almost surely, 210121223330 is an apocalyptic number.

10121223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121223330 is an abundant number, since it is smaller than the sum of its proper divisors (16216149654).

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

10121223330 is a wasteful number, since it uses less digits than its factorization.

10121223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94851 (or 94848 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10121223330 its reverse (3332212101), we get a palindrome (13453435431).

The spelling of 10121223330 in words is "ten billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1201 2402 3603 6005 7206 10809 12010 18015 21618 36030 54045 93637 108090 187274 280911 468185 561822 842733 936370 1404555 1685466 2809110 4213665 8427330 112458037 224916074 337374111 562290185 674748222 1012122333 1124580370 1686870555 2024244666 3373741110 5060611665 10121223330