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28374637373 = 193148174257
BaseRepresentation
bin11010011011010000…
…101001101100111101
32201020110212221000022
4122123100221230331
5431102401343443
621011330541525
72023102303205
oct323320515475
981213787008
1028374637373
111104081a035
1255ba7378a5
1328a271c074
141532631405
15b110b9e68
hex69b429b3d

28374637373 has 8 divisors (see below), whose sum is σ = 30831525120. Its totient is φ = 26014098240.

The previous prime is 28374637331. The next prime is 28374637387. The reversal of 28374637373 is 37373647382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28374637373 is a prime.

It is a super-2 number, since 2×283746373732 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374637273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24086540 + ... + 24087717.

It is an arithmetic number, because the mean of its divisors is an integer number (3853940640).

Almost surely, 228374637373 is an apocalyptic number.

It is an amenable number.

28374637373 is a deficient number, since it is larger than the sum of its proper divisors (2456887747).

28374637373 is a wasteful number, since it uses less digits than its factorization.

28374637373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48174307.

The product of its digits is 10668672, while the sum is 53.

The spelling of 28374637373 in words is "twenty-eight billion, three hundred seventy-four million, six hundred thirty-seven thousand, three hundred seventy-three".

Divisors: 1 19 31 589 48174257 915310883 1493401967 28374637373