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10023311209 = 29734734677
BaseRepresentation
bin10010101010110111…
…11001011101101001
3221212112121222002111
421111123321131221
5131011431424314
64334334202321
7503246511442
oct112533713551
927775558074
1010023311209
11428399707a
121b389533a1
13c3978caa2
146b12b02c9
153d9e64ec4
hex2556f9769

10023311209 has 8 divisors (see below), whose sum is σ = 10510985160. Its totient is φ = 9545106816.

The previous prime is 10023311201. The next prime is 10023311219. The reversal of 10023311209 is 90211332001.

It can be written as a sum of positive squares in 4 ways, for example, as 1664232025 + 8359079184 = 40795^2 + 91428^2 .

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 10023311209 - 23 = 10023311201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10023311209.

It is not an unprimeable number, because it can be changed into a prime (10023311201) 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, 2365222 + ... + 2369455.

It is an arithmetic number, because the mean of its divisors is an integer number (1313873145).

Almost surely, 210023311209 is an apocalyptic number.

It is an amenable number.

10023311209 is a deficient number, since it is larger than the sum of its proper divisors (487673951).

10023311209 is an equidigital number, since it uses as much as digits as its factorization.

10023311209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734779.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 10023311209 in words is "ten billion, twenty-three million, three hundred eleven thousand, two hundred nine".

Divisors: 1 29 73 2117 4734677 137305633 345631421 10023311209