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211232313132 = 22337475748453
BaseRepresentation
bin1100010010111001101…
…1010100111100101100
3202012020010212022102220
43010232123110330230
511430100433010012
6241012213315340
721155351015421
oct3045633247454
9665203768386
10211232313132
1181646152315
1234b31335b50
1316bc44058c9
14a31bb85d48
15576460208c
hex312e6d4f2c

211232313132 has 24 divisors (see below), whose sum is σ = 506196355056. Its totient is φ = 68507777088.

The previous prime is 211232313113. The next prime is 211232313137. The reversal of 211232313132 is 231313232112.

It is a super-2 number, since 2×2112323131322 (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (211232313137) 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, 237873783 + ... + 237874670.

It is an arithmetic number, because the mean of its divisors is an integer number (21091514794).

Almost surely, 2211232313132 is an apocalyptic number.

It is an amenable number.

211232313132 is an abundant number, since it is smaller than the sum of its proper divisors (294964041924).

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

211232313132 is a wasteful number, since it uses less digits than its factorization.

211232313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475748497 (or 475748495 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 211232313132 its reverse (231313232112), we get a palindrome (442545545244).

The spelling of 211232313132 in words is "two hundred eleven billion, two hundred thirty-two million, three hundred thirteen thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 475748453 951496906 1427245359 1902993812 2854490718 5708981436 17602692761 35205385522 52808078283 70410771044 105616156566 211232313132