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37780093 = 132906161
BaseRepresentation
bin1001000000011…
…1101001111101
32122002102112201
42100013221331
534132430333
63425431501
7636061021
oct220075175
978072481
1037780093
111a36481a
121079b591
137a9a2b0
145036381
1534b417d
hex2407a7d

37780093 has 4 divisors (see below), whose sum is σ = 40686268. Its totient is φ = 34873920.

The previous prime is 37780033. The next prime is 37780109. The reversal of 37780093 is 39008773.

37780093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3229209 + 34550884 = 1797^2 + 5878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-37780093 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 (37780003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453068 + ... + 1453093.

It is an arithmetic number, because the mean of its divisors is an integer number (10171567).

Almost surely, 237780093 is an apocalyptic number.

It is an amenable number.

37780093 is a deficient number, since it is larger than the sum of its proper divisors (2906175).

37780093 is a wasteful number, since it uses less digits than its factorization.

37780093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906174.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 37780093 is about 6146.5513094743. The cubic root of 37780093 is about 335.5477576210.

The spelling of 37780093 in words is "thirty-seven million, seven hundred eighty thousand, ninety-three".

Divisors: 1 13 2906161 37780093