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31412214390 = 2355279198347
BaseRepresentation
bin11101010000010100…
…000101101001110110
310000002011121211022210
4131100110011221312
51003313011330030
622233000434250
72161265262654
oct352024055166
9100064554283
1031412214390
111235a415667
126107a78986
132c67b2c30b
14173dc19dd4
15c3cad2bb0
hex750505a76

31412214390 has 32 divisors (see below), whose sum is σ = 75403975680. Its totient is φ = 8374961504.

The previous prime is 31412214371. The next prime is 31412214397. The reversal of 31412214390 is 9341221413.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31412214397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59197 + ... + 257543.

It is an arithmetic number, because the mean of its divisors is an integer number (2356374240).

Almost surely, 231412214390 is an apocalyptic number.

31412214390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31412214390 is an abundant number, since it is smaller than the sum of its proper divisors (43991761290).

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

31412214390 is a wasteful number, since it uses less digits than its factorization.

31412214390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203636.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 31412214390 in words is "thirty-one billion, four hundred twelve million, two hundred fourteen thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 5279 10558 15837 26395 31674 52790 79185 158370 198347 396694 595041 991735 1190082 1983470 2975205 5950410 1047073813 2094147626 3141221439 5235369065 6282442878 10470738130 15706107195 31412214390