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101202031 = 7109132637
BaseRepresentation
bin1100000100000…
…11100001101111
321001102121002101
412002003201233
5201401431111
614013035531
72336126440
oct602034157
9231377071
10101202031
1152142647
1229a85ba7
1317c74978
14d6252c7
158d40bc1
hex608386f

101202031 has 8 divisors (see below), whose sum is σ = 116721440. Its totient is φ = 85948128.

The previous prime is 101202019. The next prime is 101202041. The reversal of 101202031 is 130202101.

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

It is not a de Polignac number, because 101202031 - 219 = 100677743 is a prime.

It is a super-2 number, since 2×1012020312 = 20483702157049922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201999 and 101202017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202041) 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, 65556 + ... + 67081.

It is an arithmetic number, because the mean of its divisors is an integer number (14590180).

Almost surely, 2101202031 is an apocalyptic number.

101202031 is a deficient number, since it is larger than the sum of its proper divisors (15519409).

101202031 is a wasteful number, since it uses less digits than its factorization.

101202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132753.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 101202031 is about 10059.9220175904. The cubic root of 101202031 is about 466.0112589149.

Adding to 101202031 its reverse (130202101), we get a palindrome (231404132).

The spelling of 101202031 in words is "one hundred one million, two hundred two thousand, thirty-one".

Divisors: 1 7 109 763 132637 928459 14457433 101202031