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4224157 = 72326237
BaseRepresentation
bin10000000111010010011101
321221121110021
4100013102131
52040133112
6230312141
750622220
oct20072235
97847407
104224157
112425743
1214b8651
13b4b902
147bd5b7
15586907
hex40749d

4224157 has 8 divisors (see below), whose sum is σ = 5037696. Its totient is φ = 3463152.

The previous prime is 4224139. The next prime is 4224161. The reversal of 4224157 is 7514224.

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

It is not a de Polignac number, because 4224157 - 219 = 3699869 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 (4224127) 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, 12958 + ... + 13279.

It is an arithmetic number, because the mean of its divisors is an integer number (629712).

Almost surely, 24224157 is an apocalyptic number.

It is an amenable number.

4224157 is a deficient number, since it is larger than the sum of its proper divisors (813539).

4224157 is a wasteful number, since it uses less digits than its factorization.

4224157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26267.

The product of its digits is 2240, while the sum is 25.

The square root of 4224157 is about 2055.2754073360. The cubic root of 4224157 is about 161.6516035611.

The spelling of 4224157 in words is "four million, two hundred twenty-four thousand, one hundred fifty-seven".

Divisors: 1 7 23 161 26237 183659 603451 4224157