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31222024342 = 279280170549
BaseRepresentation
bin11101000100111110…
…100100100010010110
32222120220202011121221
4131010332210202112
51002420314234332
622202044200554
72153465554015
oct350476444226
988526664557
1031222024342
1112272023003
12607423915a
132c375cb222
14172286ca7c
15c2b065297
hex744fa4896

31222024342 has 16 divisors (see below), whose sum is σ = 47443464000. Its totient is φ = 15407683200.

The previous prime is 31222024289. The next prime is 31222024363. The reversal of 31222024342 is 24342022213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407284 + ... + 477832.

It is an arithmetic number, because the mean of its divisors is an integer number (2965216500).

Almost surely, 231222024342 is an apocalyptic number.

31222024342 is a deficient number, since it is larger than the sum of its proper divisors (16221439658).

31222024342 is a wasteful number, since it uses less digits than its factorization.

31222024342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73431.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31222024342 its reverse (24342022213), we get a palindrome (55564046555).

The spelling of 31222024342 in words is "thirty-one billion, two hundred twenty-two million, twenty-four thousand, three hundred forty-two".

Divisors: 1 2 79 158 2801 5602 70549 141098 221279 442558 5573371 11146742 197607749 395215498 15611012171 31222024342