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7901427 = 32990821
BaseRepresentation
bin11110001001000011110011
3112212102201110
4132021003303
54010321202
6441204403
7124106142
oct36110363
915772643
107901427
114507506
122790703
131838601
141099759
15a6126c
hex7890f3

7901427 has 8 divisors (see below), whose sum is σ = 10898640. Its totient is φ = 5085920.

The previous prime is 7901423. The next prime is 7901437. The reversal of 7901427 is 7241097.

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 7901427 - 22 = 7901423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7901394 and 7901403.

It is not an unprimeable number, because it can be changed into a prime (7901423) 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, 45324 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (1362330).

Almost surely, 27901427 is an apocalyptic number.

7901427 is a deficient number, since it is larger than the sum of its proper divisors (2997213).

7901427 is a wasteful number, since it uses less digits than its factorization.

7901427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90853.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 7901427 is about 2810.9477049565. The cubic root of 7901427 is about 199.1751612148.

The spelling of 7901427 in words is "seven million, nine hundred one thousand, four hundred twenty-seven".

Divisors: 1 3 29 87 90821 272463 2633809 7901427