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100030015421 = 731460967813
BaseRepresentation
bin101110100101001000…
…0001110011110111101
3100120012021010021122222
41131022100032132331
53114330140443141
6113541514215125
710140560050010
oct1351220163675
9316167107588
10100030015421
1139471377136
1217477a244a5
139581abb74b
144bad035377
152906bb814b
hex174a40e7bd

100030015421 has 8 divisors (see below), whose sum is σ = 118007760384. Its totient is φ = 82974206160.

The previous prime is 100030015387. The next prime is 100030015457. The reversal of 100030015421 is 124510030001.

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 100030015421 - 26 = 100030015357 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 100030015421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100030015121) 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, 230483690 + ... + 230484123.

It is an arithmetic number, because the mean of its divisors is an integer number (14750970048).

Almost surely, 2100030015421 is an apocalyptic number.

It is an amenable number.

100030015421 is a deficient number, since it is larger than the sum of its proper divisors (17977744963).

100030015421 is an equidigital number, since it uses as much as digits as its factorization.

100030015421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460967851.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 100030015421 its reverse (124510030001), we get a palindrome (224540045422).

The spelling of 100030015421 in words is "one hundred billion, thirty million, fifteen thousand, four hundred twenty-one".

Divisors: 1 7 31 217 460967813 3226774691 14290002203 100030015421