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728213495 = 5373390463
BaseRepresentation
bin101011011001111…
…010011111110111
31212202021002010012
4223121322133313
52442410312440
6200132050435
724021466262
oct5331723767
91782232105
10728213495
1134406a639
12183a63a1b
13b7b3a179
146c9ddcd9
1543de6e65
hex2b67a7f7

728213495 has 8 divisors (see below), whose sum is σ = 876201216. Its totient is φ = 581007456.

The previous prime is 728213489. The next prime is 728213501. The reversal of 728213495 is 594312827.

It is an interprime number because it is at equal distance from previous prime (728213489) and next prime (728213501).

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

It is a cyclic number.

It is not a de Polignac number, because 728213495 - 224 = 711436279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193367 + ... + 197096.

It is an arithmetic number, because the mean of its divisors is an integer number (109525152).

Almost surely, 2728213495 is an apocalyptic number.

728213495 is a deficient number, since it is larger than the sum of its proper divisors (147987721).

728213495 is a wasteful number, since it uses less digits than its factorization.

728213495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390841.

The product of its digits is 120960, while the sum is 41.

The square root of 728213495 is about 26985.4311620178. The cubic root of 728213495 is about 899.6762189225.

The spelling of 728213495 in words is "seven hundred twenty-eight million, two hundred thirteen thousand, four hundred ninety-five".

Divisors: 1 5 373 1865 390463 1952315 145642699 728213495