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31442034 = 2313403103
BaseRepresentation
bin111011111110…
…0010001110010
32012011102100210
41313330101302
531022121114
63041524550
7531152511
oct167742162
965142323
1031442034
1116825958
12a643756
13668b470
144266678
152b61259
hex1dfc472

31442034 has 16 divisors (see below), whose sum is σ = 67721472. Its totient is φ = 9674448.

The previous prime is 31441999. The next prime is 31442069. The reversal of 31442034 is 43024413.

It is an interprime number because it is at equal distance from previous prime (31441999) and next prime (31442069).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31442034.

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, 201474 + ... + 201629.

It is an arithmetic number, because the mean of its divisors is an integer number (4232592).

Almost surely, 231442034 is an apocalyptic number.

31442034 is an abundant number, since it is smaller than the sum of its proper divisors (36279438).

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

31442034 is a wasteful number, since it uses less digits than its factorization.

31442034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403121.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 31442034 is about 5607.3196805604. The cubic root of 31442034 is about 315.6241391866.

Adding to 31442034 its reverse (43024413), we get a palindrome (74466447).

The spelling of 31442034 in words is "thirty-one million, four hundred forty-two thousand, thirty-four".

Divisors: 1 2 3 6 13 26 39 78 403103 806206 1209309 2418618 5240339 10480678 15721017 31442034