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103133031 = 340984053
BaseRepresentation
bin1100010010110…
…10111101100111
321012001200220220
412021122331213
5202400224111
614122255423
72361421251
oct611327547
9235050826
10103133031
1153241411
122a657573
131849c881
14d9a8cd1
1590c2e06
hex625af67

103133031 has 8 divisors (see below), whose sum is σ = 137848560. Its totient is φ = 68586432.

The previous prime is 103133029. The next prime is 103133039. The reversal of 103133031 is 130331301.

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

It is not a de Polignac number, because 103133031 - 21 = 103133029 is a prime.

It is a super-2 number, since 2×1031330312 = 21272844166493922, 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 103133031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103133039) 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, 40800 + ... + 43253.

It is an arithmetic number, because the mean of its divisors is an integer number (17231070).

Almost surely, 2103133031 is an apocalyptic number.

103133031 is a deficient number, since it is larger than the sum of its proper divisors (34715529).

103133031 is an equidigital number, since it uses as much as digits as its factorization.

103133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84465.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 103133031 is about 10155.4434172024. The cubic root of 103133031 is about 468.9565367530.

Adding to 103133031 its reverse (130331301), we get a palindrome (233464332).

The spelling of 103133031 in words is "one hundred three million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 3 409 1227 84053 252159 34377677 103133031