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211211032444 = 221034363117499
BaseRepresentation
bin1100010010110100101…
…0001001011101111100
3202012011122211010211021
43010231022021131330
511430030011014234
6241010133233524
721155002103536
oct3045512113574
9665148733737
10211211032444
1181635137875
1234b261928a4
1316bbcb94599
14a319006856
1557627eb9b4
hex312d28977c

211211032444 has 24 divisors (see below), whose sum is σ = 373296560000. Its totient is φ = 104555360304.

The previous prime is 211211032399. The next prime is 211211032507. The reversal of 211211032444 is 444230112112.

211211032444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2112110324442 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738807 + ... + 1856305.

Almost surely, 2211211032444 is an apocalyptic number.

It is an amenable number.

211211032444 is a deficient number, since it is larger than the sum of its proper divisors (162085527556).

211211032444 is a wasteful number, since it uses less digits than its factorization.

211211032444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121969 (or 121967 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 211211032444 its reverse (444230112112), we get a palindrome (655441144556).

The spelling of 211211032444 in words is "two hundred eleven billion, two hundred eleven million, thirty-two thousand, four hundred forty-four".

Divisors: 1 2 4 103 206 412 4363 8726 17452 117499 234998 449389 469996 898778 1797556 12102397 24204794 48409588 512648137 1025296274 2050592548 52802758111 105605516222 211211032444