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387052005 = 35173741023
BaseRepresentation
bin10111000100011…
…111000111100101
3222222022021112110
4113010133013211
51243041131010
6102223511233
712406613334
oct2704370745
9888267473
10387052005
1118953199a
12a9758519
1362259c72
1439593d1b
1523ea7120
hex1711f1e5

387052005 has 32 divisors (see below), whose sum is σ = 673449984. Its totient is φ = 189029376.

The previous prime is 387051997. The next prime is 387052069. The reversal of 387052005 is 500250783.

It is a happy number.

It is not a de Polignac number, because 387052005 - 23 = 387051997 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11077 + ... + 29946.

It is an arithmetic number, because the mean of its divisors is an integer number (21045312).

Almost surely, 2387052005 is an apocalyptic number.

It is an amenable number.

387052005 is a deficient number, since it is larger than the sum of its proper divisors (286397979).

387052005 is a wasteful number, since it uses less digits than its factorization.

387052005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41085.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 387052005 is about 19673.6373098621. The cubic root of 387052005 is about 728.7688041343.

The spelling of 387052005 in words is "three hundred eighty-seven million, fifty-two thousand, five".

Divisors: 1 3 5 15 17 37 51 85 111 185 255 555 629 1887 3145 9435 41023 123069 205115 615345 697391 1517851 2092173 3486955 4553553 7589255 10460865 22767765 25803467 77410401 129017335 387052005