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31413230 = 2531101333
BaseRepresentation
bin111011111010…
…1001111101110
32012002221211222
41313311033232
531020210410
63041143342
7531002522
oct167651756
965087758
1031413230
1116806252
12a62ab52
13667b314
144259d82
152b57955
hex1df53ee

31413230 has 16 divisors (see below), whose sum is σ = 58368384. Its totient is φ = 12159840.

The previous prime is 31413227. The next prime is 31413233. The reversal of 31413230 is 3231413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31413227) and next prime (31413233).

It is a junction number, because it is equal to n+sod(n) for n = 31413199 and 31413208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31413233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50357 + ... + 50976.

It is an arithmetic number, because the mean of its divisors is an integer number (3648024).

Almost surely, 231413230 is an apocalyptic number.

31413230 is a deficient number, since it is larger than the sum of its proper divisors (26955154).

31413230 is a wasteful number, since it uses less digits than its factorization.

31413230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101371.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31413230 is about 5604.7506634997. The cubic root of 31413230 is about 315.5277288073.

Adding to 31413230 its reverse (3231413), we get a palindrome (34644643).

The spelling of 31413230 in words is "thirty-one million, four hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 101333 202666 506665 1013330 3141323 6282646 15706615 31413230