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101031202145 = 597208311757
BaseRepresentation
bin101111000010111101…
…1011100110101100001
3100122210001000211122202
41132011323130311201
53123402441432040
6114225121142545
710204435022516
oct1360573346541
9318701024582
10101031202145
1139935530585
12176b718aa55
1396b1352b23
144c65db130d
152964a31015
hex1785edcd61

101031202145 has 8 divisors (see below), whose sum is σ = 122487313704. Its totient is φ = 79991714304.

The previous prime is 101031202127. The next prime is 101031202171. The reversal of 101031202145 is 541202130101.

It can be written as a sum of positive squares in 4 ways, for example, as 321449041 + 100709753104 = 17929^2 + 317348^2 .

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 101031202145 - 26 = 101031202081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104155394 + ... + 104156363.

It is an arithmetic number, because the mean of its divisors is an integer number (15310914213).

Almost surely, 2101031202145 is an apocalyptic number.

It is an amenable number.

101031202145 is a deficient number, since it is larger than the sum of its proper divisors (21456111559).

101031202145 is an equidigital number, since it uses as much as digits as its factorization.

101031202145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208311859.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 101031202145 its reverse (541202130101), we get a palindrome (642233332246).

The spelling of 101031202145 in words is "one hundred one billion, thirty-one million, two hundred two thousand, one hundred forty-five".

Divisors: 1 5 97 485 208311757 1041558785 20206240429 101031202145