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100021230101 = 1373105396449
BaseRepresentation
bin101110100100110111…
…0101101101000010101
3100120011122120221110202
41131021232231220111
53114320413330401
6113541002030245
710140422266562
oct1351156555025
9316148527422
10100021230101
1139467416641
1217474aa8385
139580033a30
144babbc9869
15290603006b
hex1749bada15

100021230101 has 8 divisors (see below), whose sum is σ = 109190722200. Its totient is φ = 91062531072.

The previous prime is 100021229981. The next prime is 100021230103. The reversal of 100021230101 is 101032120001.

It can be written as a sum of positive squares in 4 ways, for example, as 19881282001 + 80139948100 = 141001^2 + 283090^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100021230101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021230103) 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, 52697276 + ... + 52699173.

It is an arithmetic number, because the mean of its divisors is an integer number (13648840275).

Almost surely, 2100021230101 is an apocalyptic number.

It is an amenable number.

100021230101 is a deficient number, since it is larger than the sum of its proper divisors (9169492099).

100021230101 is a wasteful number, since it uses less digits than its factorization.

100021230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105396535.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 100021230101 its reverse (101032120001), we get a palindrome (201053350102).

The spelling of 100021230101 in words is "one hundred billion, twenty-one million, two hundred thirty thousand, one hundred one".

Divisors: 1 13 73 949 105396449 1370153837 7693940777 100021230101