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120401101 = 229525769
BaseRepresentation
bin1110010110100…
…10110011001101
322101120000021001
413023102303031
5221310313401
615540340301
72661251422
oct713226315
9271500231
10120401101
1161a66147
12343a4691
131bc37672
1411dc1d49
15a884601
hex72d2ccd

120401101 has 4 divisors (see below), whose sum is σ = 120927100. Its totient is φ = 119875104.

The previous prime is 120401093. The next prime is 120401111. The reversal of 120401101 is 101104021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101104021 = 234395827.

It can be written as a sum of positive squares in 2 ways, for example, as 117744201 + 2656900 = 10851^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 120401101 - 23 = 120401093 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 (120401111) 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, 262656 + ... + 263113.

It is an arithmetic number, because the mean of its divisors is an integer number (30231775).

Almost surely, 2120401101 is an apocalyptic number.

It is an amenable number.

120401101 is a deficient number, since it is larger than the sum of its proper divisors (525999).

120401101 is an equidigital number, since it uses as much as digits as its factorization.

120401101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525998.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 120401101 is about 10972.7435493590. The cubic root of 120401101 is about 493.7913593298.

Adding to 120401101 its reverse (101104021), we get a palindrome (221505122).

The spelling of 120401101 in words is "one hundred twenty million, four hundred one thousand, one hundred one".

Divisors: 1 229 525769 120401101