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9972740207 = 312887111431
BaseRepresentation
bin10010100100110101…
…11111000001101111
3221202000110200201102
421102122333001233
5130411010141312
64325330233315
7502063615223
oct112232770157
927660420642
109972740207
114258396361
121b23a2583b
13c2c164811
146a86a8783
153d57c5ec2
hex2526bf06f

9972740207 has 8 divisors (see below), whose sum is σ = 10298099712. Its totient is φ = 9647609400.

The previous prime is 9972740179. The next prime is 9972740221. The reversal of 9972740207 is 7020472799.

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 9972740207 - 28 = 9972739951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972746207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33782 + ... + 145212.

It is an arithmetic number, because the mean of its divisors is an integer number (1287262464).

Almost surely, 29972740207 is an apocalyptic number.

9972740207 is a deficient number, since it is larger than the sum of its proper divisors (325359505).

9972740207 is a wasteful number, since it uses less digits than its factorization.

9972740207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114349.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 9972740207 is about 99863.6080211405. The cubic root of 9972740207 is about 2152.4752603742.

The spelling of 9972740207 in words is "nine billion, nine hundred seventy-two million, seven hundred forty thousand, two hundred seven".

Divisors: 1 31 2887 89497 111431 3454361 321701297 9972740207