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100202203001 = 318131500221
BaseRepresentation
bin101110101010010000…
…1000100011101111001
3100120122021010022121202
41131110201010131321
53120203230444001
6114010544543545
710145050446425
oct1352441043571
9316567108552
10100202203001
113954a59321a
1217505621bb5
1395ab6886a4
144bc7c57b85
152916d7b96b
hex1754844779

100202203001 has 4 divisors (see below), whose sum is σ = 100233706404. Its totient is φ = 100170699600.

The previous prime is 100202202923. The next prime is 100202203019. The reversal of 100202203001 is 100302202001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61541205625 + 38660997376 = 248075^2 + 196624^2 .

It is a cyclic number.

It is not a de Polignac number, because 100202203001 - 222 = 100198008697 is a prime.

It is a super-2 number, since 2×1002022030012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100202203601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15746930 + ... + 15753291.

It is an arithmetic number, because the mean of its divisors is an integer number (25058426601).

Almost surely, 2100202203001 is an apocalyptic number.

It is an amenable number.

100202203001 is a deficient number, since it is larger than the sum of its proper divisors (31503403).

100202203001 is an equidigital number, since it uses as much as digits as its factorization.

100202203001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31503402.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 100202203001 its reverse (100302202001), we get a palindrome (200504405002).

The spelling of 100202203001 in words is "one hundred billion, two hundred two million, two hundred three thousand, one".

Divisors: 1 3181 31500221 100202203001