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372020407 = 1133820037
BaseRepresentation
bin10110001011001…
…001010010110111
3221221000121001121
4112023021102313
51230214123112
6100525404411
712135056413
oct2613112267
9857017047
10372020407
11180aa5490
12a4709707
135c0c6125
143759dd43
15229d8407
hex162c94b7

372020407 has 4 divisors (see below), whose sum is σ = 405840456. Its totient is φ = 338200360.

The previous prime is 372020387. The next prime is 372020443. The reversal of 372020407 is 704020273.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 372020407 - 211 = 372018359 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 (372020107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16910008 + ... + 16910029.

It is an arithmetic number, because the mean of its divisors is an integer number (101460114).

Almost surely, 2372020407 is an apocalyptic number.

372020407 is a deficient number, since it is larger than the sum of its proper divisors (33820049).

372020407 is a wasteful number, since it uses less digits than its factorization.

372020407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33820048.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 372020407 is about 19287.8305415617. The cubic root of 372020407 is about 719.2097856906.

The spelling of 372020407 in words is "three hundred seventy-two million, twenty thousand, four hundred seven".

Divisors: 1 11 33820037 372020407