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431493101 = 13211157307
BaseRepresentation
bin11001101110000…
…000111111101101
31010001221010020222
4121232000333231
51340430234401
6110452221125
713456426244
oct3156007755
91101833228
10431493101
11201626176
1210060a7a5
136b51a080
144144195b
1527d34c1b
hex19b80fed

431493101 has 8 divisors (see below), whose sum is σ = 466890144. Its totient is φ = 396411120.

The previous prime is 431493079. The next prime is 431493103. The reversal of 431493101 is 101394134.

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 431493101 - 222 = 427298797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431493103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75911 + ... + 81396.

It is an arithmetic number, because the mean of its divisors is an integer number (58361268).

Almost surely, 2431493101 is an apocalyptic number.

It is an amenable number.

431493101 is a deficient number, since it is larger than the sum of its proper divisors (35397043).

431493101 is a wasteful number, since it uses less digits than its factorization.

431493101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157531.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 431493101 is about 20772.4120169036. The cubic root of 431493101 is about 755.6568416606.

The spelling of 431493101 in words is "four hundred thirty-one million, four hundred ninety-three thousand, one hundred one".

Divisors: 1 13 211 2743 157307 2044991 33191777 431493101