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31356605342 = 217390626027
BaseRepresentation
bin11101001100111111…
…111101001110011110
32222221021222121001102
4131030333331032132
51003204242332332
622223252513102
72160021514316
oct351477751636
988837877042
1031356605342
1112330a93777
1260b131b792
132c5945bb5a
1417366a2446
15c37c9b062
hex74cffd39e

31356605342 has 8 divisors (see below), whose sum is σ = 47306786616. Its totient is φ = 15587676472.

The previous prime is 31356605321. The next prime is 31356605363. The reversal of 31356605342 is 24350665313.

It is an interprime number because it is at equal distance from previous prime (31356605321) and next prime (31356605363).

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

It is a junction number, because it is equal to n+sod(n) for n = 31356605296 and 31356605305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45312668 + ... + 45313359.

It is an arithmetic number, because the mean of its divisors is an integer number (5913348327).

Almost surely, 231356605342 is an apocalyptic number.

31356605342 is a deficient number, since it is larger than the sum of its proper divisors (15950181274).

31356605342 is a wasteful number, since it uses less digits than its factorization.

31356605342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90626202.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 31356605342 in words is "thirty-one billion, three hundred fifty-six million, six hundred five thousand, three hundred forty-two".

Divisors: 1 2 173 346 90626027 181252054 15678302671 31356605342