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31354422374 = 2119531495489
BaseRepresentation
bin11101001100110111…
…101000010001100110
32222221010212200120202
4131030313220101212
51003203213003444
622223134030502
72156664123062
oct351467502146
988833780522
1031354422374
111232a832670
1260b0648432
132c58b76362
141736294aa2
15c379b934e
hex74cde8466

31354422374 has 16 divisors (see below), whose sum is σ = 51361108560. Its totient is φ = 14237045760.

The previous prime is 31354422293. The next prime is 31354422397. The reversal of 31354422374 is 47322445313.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726779 + ... + 768710.

It is an arithmetic number, because the mean of its divisors is an integer number (3210069285).

Almost surely, 231354422374 is an apocalyptic number.

31354422374 is a deficient number, since it is larger than the sum of its proper divisors (20006686186).

31354422374 is a wasteful number, since it uses less digits than its factorization.

31354422374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496455.

The product of its digits is 241920, while the sum is 38.

Adding to 31354422374 its reverse (47322445313), we get a palindrome (78676867687).

The spelling of 31354422374 in words is "thirty-one billion, three hundred fifty-four million, four hundred twenty-two thousand, three hundred seventy-four".

Divisors: 1 2 11 22 953 1906 10483 20966 1495489 2990978 16450379 32900758 1425201017 2850402034 15677211187 31354422374