Search a number
-
+
28344963470 = 2535938920297
BaseRepresentation
bin11010011001011111…
…011101000110001110
32201011102001100001212
4122121133131012032
5431022302312340
621004350534422
72022262133315
oct323137350616
981142040055
1028344963470
1111025aa164a
1255b0807412
13289952c645
14152c70927c
15b0d6a7a65
hex6997dd18e

28344963470 has 32 divisors (see below), whose sum is σ = 51297105600. Its totient is φ = 11276782336.

The previous prime is 28344963469. The next prime is 28344963473. The reversal of 28344963470 is 7436944382.

It is a super-4 number, since 4×283449634704 (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28344963473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386362 + ... + 1406658.

It is an arithmetic number, because the mean of its divisors is an integer number (1603034550).

Almost surely, 228344963470 is an apocalyptic number.

28344963470 is a deficient number, since it is larger than the sum of its proper divisors (22952142130).

28344963470 is a wasteful number, since it uses less digits than its factorization.

28344963470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21052.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 28344963470 in words is "twenty-eight billion, three hundred forty-four million, nine hundred sixty-three thousand, four hundred seventy".

Divisors: 1 2 5 10 359 389 718 778 1795 1945 3590 3890 20297 40594 101485 139651 202970 279302 698255 1396510 7286623 7895533 14573246 15791066 36433115 39477665 72866230 78955330 2834496347 5668992694 14172481735 28344963470