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8380007 = 19441053
BaseRepresentation
bin11111111101111001100111
3120202202012122
4133331321213
54121130012
6455340155
7131141336
oct37757147
916682178
108380007
114804029
12298165b
1319753ac
141181d1d
15b07e72
hex7fde67

8380007 has 4 divisors (see below), whose sum is σ = 8821080. Its totient is φ = 7938936.

The previous prime is 8379961. The next prime is 8380037. The reversal of 8380007 is 7000838.

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 8380007 - 220 = 7331431 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 (8380037) 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, 220508 + ... + 220545.

It is an arithmetic number, because the mean of its divisors is an integer number (2205270).

Almost surely, 28380007 is an apocalyptic number.

8380007 is a deficient number, since it is larger than the sum of its proper divisors (441073).

8380007 is a wasteful number, since it uses less digits than its factorization.

8380007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441072.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 8380007 is about 2894.8241742807. The cubic root of 8380007 is about 203.1178669527.

The spelling of 8380007 in words is "eight million, three hundred eighty thousand, seven".

Divisors: 1 19 441053 8380007