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31341442 = 21137139277
BaseRepresentation
bin111011110001…
…1101110000010
32011222022101011
41313203232002
531010411232
63035431134
7530253316
oct167435602
964868334
1031341442
1116767320
12a5b54aa
136654742
14423bb46
152b41547
hex1de3b82

31341442 has 32 divisors (see below), whose sum is σ = 53242560. Its totient is φ = 13711680.

The previous prime is 31341419. The next prime is 31341467. The reversal of 31341442 is 24414313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113008 + ... + 113284.

It is an arithmetic number, because the mean of its divisors is an integer number (1663830).

Almost surely, 231341442 is an apocalyptic number.

31341442 is a deficient number, since it is larger than the sum of its proper divisors (21901118).

31341442 is a wasteful number, since it uses less digits than its factorization.

31341442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 1152, while the sum is 22.

The square root of 31341442 is about 5598.3427905051. The cubic root of 31341442 is about 315.2871891659.

Adding to 31341442 its reverse (24414313), we get a palindrome (55755755).

The spelling of 31341442 in words is "thirty-one million, three hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 11 22 37 74 139 277 278 407 554 814 1529 3047 3058 5143 6094 10249 10286 20498 38503 56573 77006 112739 113146 225478 423533 847066 1424611 2849222 15670721 31341442