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103007631 = 365952103
BaseRepresentation
bin1100010001111…
…00010110001111
321011211022220110
412020330112033
5202332221011
614115451103
72360356536
oct610742617
9234738813
10103007631
1153166181
122a5b6a93
131845777c
14d97531d
15909aba6
hex623c58f

103007631 has 8 divisors (see below), whose sum is σ = 137554560. Its totient is φ = 68566232.

The previous prime is 103007629. The next prime is 103007633. The reversal of 103007631 is 136700301.

It is an interprime number because it is at equal distance from previous prime (103007629) and next prime (103007633).

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 103007631 - 21 = 103007629 is a prime.

It is a super-2 number, since 2×1030076312 = 21221144088464322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103007598 and 103007607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103007633) 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, 24075 + ... + 28028.

It is an arithmetic number, because the mean of its divisors is an integer number (17194320).

Almost surely, 2103007631 is an apocalyptic number.

103007631 is a deficient number, since it is larger than the sum of its proper divisors (34546929).

103007631 is an equidigital number, since it uses as much as digits as its factorization.

103007631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52765.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 103007631 is about 10149.2675105152. The cubic root of 103007631 is about 468.7663907513.

Adding to 103007631 its reverse (136700301), we get a palindrome (239707932).

The spelling of 103007631 in words is "one hundred three million, seven thousand, six hundred thirty-one".

Divisors: 1 3 659 1977 52103 156309 34335877 103007631