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312202213230 = 23510406740441
BaseRepresentation
bin1001000101100001011…
…00111011011101101110
31002211211220112200111110
410202300230323131232
520103342231310410
6355231304532450
731361443012125
oct4426054733556
91084756480443
10312202213230
1111044a012746
125060ba81126
1323595b43c1b
141117995aabc
1581c3a74720
hex48b0b3b76e

312202213230 has 16 divisors (see below), whose sum is σ = 749285311824. Its totient is φ = 83253923520.

The previous prime is 312202213217. The next prime is 312202213237. The reversal of 312202213230 is 32312202213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312202213197 and 312202213206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202213237) 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, 5203370191 + ... + 5203370250.

It is an arithmetic number, because the mean of its divisors is an integer number (46830331989).

Almost surely, 2312202213230 is an apocalyptic number.

312202213230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312202213230 is an abundant number, since it is smaller than the sum of its proper divisors (437083098594).

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

312202213230 is a wasteful number, since it uses less digits than its factorization.

312202213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406740451.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312202213230 its reverse (32312202213), we get a palindrome (344514415443).

The spelling of 312202213230 in words is "three hundred twelve billion, two hundred two million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 10406740441 20813480882 31220221323 52033702205 62440442646 104067404410 156101106615 312202213230