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3780145 = 51939791
BaseRepresentation
bin1110011010111000110001
321010001101101
432122320301
51431431040
6213004401
744062555
oct16327061
97101341
103780145
112152096
121323701
13a24795
14705865
154ea09a
hex39ae31

3780145 has 8 divisors (see below), whose sum is σ = 4775040. Its totient is φ = 2864880.

The previous prime is 3780143. The next prime is 3780149. The reversal of 3780145 is 5410873.

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

It is not a de Polignac number, because 3780145 - 21 = 3780143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19801 + ... + 19990.

It is an arithmetic number, because the mean of its divisors is an integer number (596880).

Almost surely, 23780145 is an apocalyptic number.

It is an amenable number.

3780145 is a deficient number, since it is larger than the sum of its proper divisors (994895).

3780145 is a wasteful number, since it uses less digits than its factorization.

3780145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39815.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3780145 is about 1944.2594991410. The cubic root of 3780145 is about 155.7768148598.

The spelling of 3780145 in words is "three million, seven hundred eighty thousand, one hundred forty-five".

Divisors: 1 5 19 95 39791 198955 756029 3780145