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4124100021 = 31578756051
BaseRepresentation
bin1111010111010000…
…1100010110110101
3101122102012222200020
43311310030112311
531421232200041
61521121435353
7204125162136
oct36564142665
911572188606
104124100021
111826a46428
1297119bb59
13509552892
142b1a19c8d
151920da866
hexf5d0c5b5

4124100021 has 8 divisors (see below), whose sum is σ = 5533824864. Its totient is φ = 2731887600.

The previous prime is 4124099983. The next prime is 4124100041. The reversal of 4124100021 is 1200014214.

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

It is not a de Polignac number, because 4124100021 - 215 = 4124067253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4124100041) 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, 4377555 + ... + 4378496.

It is an arithmetic number, because the mean of its divisors is an integer number (691728108).

Almost surely, 24124100021 is an apocalyptic number.

It is an amenable number.

4124100021 is a deficient number, since it is larger than the sum of its proper divisors (1409724843).

4124100021 is a wasteful number, since it uses less digits than its factorization.

4124100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756211.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 4124100021 is about 64219.1561841169. The cubic root of 4124100021 is about 1603.6505216241.

Adding to 4124100021 its reverse (1200014214), we get a palindrome (5324114235).

The spelling of 4124100021 in words is "four billion, one hundred twenty-four million, one hundred thousand, twenty-one".

Divisors: 1 3 157 471 8756051 26268153 1374700007 4124100021