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207479542 = 2144771693
BaseRepresentation
bin11000101110111…
…10001011110110
3112110102001102111
430113132023312
5411103321132
632331001234
75066355424
oct1427361366
9473361374
10207479542
11a71314a6
125959921a
1333ca587a
141d7ac114
1513335647
hexc5de2f6

207479542 has 8 divisors (see below), whose sum is σ = 311438736. Its totient is φ = 103666632.

The previous prime is 207479539. The next prime is 207479549. The reversal of 207479542 is 245974702.

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

It is a junction number, because it is equal to n+sod(n) for n = 207479495 and 207479504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207479549) 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 3 ways as a sum of consecutive naturals, for example, 32953 + ... + 38740.

It is an arithmetic number, because the mean of its divisors is an integer number (38929842).

Almost surely, 2207479542 is an apocalyptic number.

207479542 is a deficient number, since it is larger than the sum of its proper divisors (103959194).

207479542 is a wasteful number, since it uses less digits than its factorization.

207479542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73142.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 207479542 is about 14404.1501658376. The cubic root of 207479542 is about 592.0046167007.

The spelling of 207479542 in words is "two hundred seven million, four hundred seventy-nine thousand, five hundred forty-two".

Divisors: 1 2 1447 2894 71693 143386 103739771 207479542