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103201431 = 3113304429
BaseRepresentation
bin1100010011010…
…11101010010111
321012012011202020
412021223222113
5202404421211
614123544223
72362124544
oct611535227
9235164666
10103201431
1153288843
122a68b073
13184c4a48
14d9c5bcb
1590d8306
hex626ba97

103201431 has 8 divisors (see below), whose sum is σ = 138820080. Its totient is φ = 68191872.

The previous prime is 103201429. The next prime is 103201433. The reversal of 103201431 is 134102301.

It is an interprime number because it is at equal distance from previous prime (103201429) and next prime (103201433).

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

It is not a de Polignac number, because 103201431 - 21 = 103201429 is a prime.

It is a super-2 number, since 2×1032014312 = 21301070720895522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103201431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103201433) 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, 151876 + ... + 152553.

It is an arithmetic number, because the mean of its divisors is an integer number (17352510).

Almost surely, 2103201431 is an apocalyptic number.

103201431 is a deficient number, since it is larger than the sum of its proper divisors (35618649).

103201431 is a wasteful number, since it uses less digits than its factorization.

103201431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304545.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103201431 is about 10158.8105110785. The cubic root of 103201431 is about 469.0601877951.

Adding to 103201431 its reverse (134102301), we get a palindrome (237303732).

The spelling of 103201431 in words is "one hundred three million, two hundred one thousand, four hundred thirty-one".

Divisors: 1 3 113 339 304429 913287 34400477 103201431