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380949 = 3235521
BaseRepresentation
bin1011101000000010101
3201100120020
41131000111
544142244
612055353
73144432
oct1350025
9640506
10380949
11240238
12164559
1310451a
149cb89
1577d19
hex5d015

380949 has 8 divisors (see below), whose sum is σ = 530112. Its totient is φ = 242880.

The previous prime is 380929. The next prime is 380951. The reversal of 380949 is 949083.

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

It is not a de Polignac number, because 380949 - 25 = 380917 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380909) 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, 2692 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (66264).

2380949 is an apocalyptic number.

It is an amenable number.

380949 is a deficient number, since it is larger than the sum of its proper divisors (149163).

380949 is a wasteful number, since it uses less digits than its factorization.

380949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5547.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 380949 is about 617.2106609578. The cubic root of 380949 is about 72.4918104107.

The spelling of 380949 in words is "three hundred eighty thousand, nine hundred forty-nine".

Divisors: 1 3 23 69 5521 16563 126983 380949