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1310211442 = 22412718281
BaseRepresentation
bin100111000011000…
…0011110101110010
310101022101122012201
41032012003311302
510140403231232
6334002213414
744316420301
oct11606036562
93338348181
101310211442
11612642281
1230695426a
1317b5a1b57
14c601c438
157a05abe7
hex4e183d72

1310211442 has 8 divisors (see below), whose sum is σ = 1973472732. Its totient is φ = 652387200.

The previous prime is 1310211431. The next prime is 1310211449. The reversal of 1310211442 is 2441120131.

It can be written as a sum of positive squares in 2 ways, for example, as 1251673641 + 58537801 = 35379^2 + 7651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1310211449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358659 + ... + 1359622.

Almost surely, 21310211442 is an apocalyptic number.

1310211442 is a deficient number, since it is larger than the sum of its proper divisors (663261290).

1310211442 is a wasteful number, since it uses less digits than its factorization.

1310211442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718524.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1310211442 is about 36196.8429838847. The cubic root of 1310211442 is about 1094.2430475328.

Adding to 1310211442 its reverse (2441120131), we get a palindrome (3751331573).

The spelling of 1310211442 in words is "one billion, three hundred ten million, two hundred eleven thousand, four hundred forty-two".

Divisors: 1 2 241 482 2718281 5436562 655105721 1310211442