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31422002310 = 2325349133359
BaseRepresentation
bin11101010000111001…
…011011010010000110
310000002212001002211100
4131100321123102012
51003323013033220
622233550320530
72161444420116
oct352071332206
9100085032740
1031422002310
11123649a0456
12610b1b9146
132c69b7849a
141741247046
15c3d8b7d90
hex750e5b486

31422002310 has 24 divisors (see below), whose sum is σ = 81697206240. Its totient is φ = 8379200592.

The previous prime is 31422002273. The next prime is 31422002333. The reversal of 31422002310 is 1320022413.

It is a super-2 number, since 2×314220023102 (a number of 22 digits) contains 22 as substring.

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

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 11 ways as a sum of consecutive naturals, for example, 174566590 + ... + 174566769.

It is an arithmetic number, because the mean of its divisors is an integer number (3404050260).

Almost surely, 231422002310 is an apocalyptic number.

31422002310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31422002310 is an abundant number, since it is smaller than the sum of its proper divisors (50275203930).

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

31422002310 is a wasteful number, since it uses less digits than its factorization.

31422002310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349133372 (or 349133369 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31422002310 its reverse (1320022413), we get a palindrome (32742024723).

The spelling of 31422002310 in words is "thirty-one billion, four hundred twenty-two million, two thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 349133359 698266718 1047400077 1745666795 2094800154 3142200231 3491333590 5237000385 6284400462 10474000770 15711001155 31422002310