Search a number
-
+
69305420 = 2253465271
BaseRepresentation
bin1000010000110…
…00010001001100
311211102002011102
410020120101030
5120220233140
610513242232
71501041422
oct410302114
9154362142
1069305420
1136137208
121b263378
1311487632
1492c1112
15613ee15
hex421844c

69305420 has 12 divisors (see below), whose sum is σ = 145541424. Its totient is φ = 27722160.

The previous prime is 69305387. The next prime is 69305437. The reversal of 69305420 is 2450396.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1732616 + ... + 1732655.

It is an arithmetic number, because the mean of its divisors is an integer number (12128452).

Almost surely, 269305420 is an apocalyptic number.

It is an amenable number.

69305420 is an abundant number, since it is smaller than the sum of its proper divisors (76236004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69305420 is a wasteful number, since it uses less digits than its factorization.

69305420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465280 (or 3465278 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 69305420 is about 8324.9876876786. The cubic root of 69305420 is about 410.7608714679.

The spelling of 69305420 in words is "sixty-nine million, three hundred five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 3465271 6930542 13861084 17326355 34652710 69305420