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5400031 = 71359341
BaseRepresentation
bin10100100110010111011111
3101011100110011
4110212113133
52340300111
6311424051
763620350
oct24462737
911140404
105400031
11305913a
121985027
131170bb0
14a07d27
1571a021
hex5265df

5400031 has 8 divisors (see below), whose sum is σ = 6646304. Its totient is φ = 4272480.

The previous prime is 5400023. The next prime is 5400037. The reversal of 5400031 is 1300045.

5400031 = T298 + T299 + ... + T388.

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

It is a cyclic number.

It is not a de Polignac number, because 5400031 - 23 = 5400023 is a prime.

It is a super-2 number, since 2×54000312 = 58320669601922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

5400031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5399984 and 5400020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400037) 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, 29580 + ... + 29761.

It is an arithmetic number, because the mean of its divisors is an integer number (830788).

Almost surely, 25400031 is an apocalyptic number.

5400031 is a deficient number, since it is larger than the sum of its proper divisors (1246273).

5400031 is a wasteful number, since it uses less digits than its factorization.

5400031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59361.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 5400031 is about 2323.7966778529. The cubic root of 5400031 is about 175.4414000127.

Adding to 5400031 its reverse (1300045), we get a palindrome (6700076).

The spelling of 5400031 in words is "five million, four hundred thousand, thirty-one".

Divisors: 1 7 13 91 59341 415387 771433 5400031