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425132197 = 7155339107
BaseRepresentation
bin11001010101110…
…000000010100101
31002121221221201221
4121111300002211
51332313212242
6110104020341
713351364320
oct3125600245
91077857657
10425132197
111a8a81126
12ba4616b1
136a100a19
14406677b7
15274ca167
hex195700a5

425132197 has 8 divisors (see below), whose sum is σ = 486190656. Its totient is φ = 364155072.

The previous prime is 425132177. The next prime is 425132231. The reversal of 425132197 is 791231524.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-425132197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425132117) 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, 8683 + ... + 30424.

It is an arithmetic number, because the mean of its divisors is an integer number (60773832).

Almost surely, 2425132197 is an apocalyptic number.

It is an amenable number.

425132197 is a deficient number, since it is larger than the sum of its proper divisors (61058459).

425132197 is a wasteful number, since it uses less digits than its factorization.

425132197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40667.

The product of its digits is 15120, while the sum is 34.

The square root of 425132197 is about 20618.7341270021. The cubic root of 425132197 is about 751.9252444975.

The spelling of 425132197 in words is "four hundred twenty-five million, one hundred thirty-two thousand, one hundred ninety-seven".

Divisors: 1 7 1553 10871 39107 273749 60733171 425132197