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4031021201 = 10139911101
BaseRepresentation
bin1111000001000100…
…1000000010010001
3101101221002002112112
43300101020002101
531223420134301
61503554435105
7201615054254
oct36021100221
911357062475
104031021201
111789451989
12945b92a95
134c319345c
142a350b09b
15188d519bb
hexf0448091

4031021201 has 4 divisors (see below), whose sum is σ = 4070932404. Its totient is φ = 3991110000.

The previous prime is 4031021191. The next prime is 4031021219. The reversal of 4031021201 is 1021201304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2691534400 + 1339486801 = 51880^2 + 36599^2 .

It is a cyclic number.

It is not a de Polignac number, because 4031021201 - 210 = 4031020177 is a prime.

It is a super-2 number, since 2×40310212012 = 32498263845822964802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4031021261) 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, 19955450 + ... + 19955651.

It is an arithmetic number, because the mean of its divisors is an integer number (1017733101).

Almost surely, 24031021201 is an apocalyptic number.

It is an amenable number.

4031021201 is a deficient number, since it is larger than the sum of its proper divisors (39911203).

4031021201 is a wasteful number, since it uses less digits than its factorization.

4031021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39911202.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 4031021201 is about 63490.3236800695. The cubic root of 4031021201 is about 1591.4940798380.

Adding to 4031021201 its reverse (1021201304), we get a palindrome (5052222505).

The spelling of 4031021201 in words is "four billion, thirty-one million, twenty-one thousand, two hundred one".

Divisors: 1 101 39911101 4031021201