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28270347366 = 23139251135049
BaseRepresentation
bin11010010101000010…
…110100010001100110
32200222012122110000110
4122111002310101212
5430344202103431
620553123353450
72020364662542
oct322502642146
980865573013
1028270347366
1110a97968448
12558b822886
132886c359c1
141522844a22
15b06d69346
hex6950b4466

28270347366 has 32 divisors (see below), whose sum is σ = 57174768000. Its totient is φ = 9318312000.

The previous prime is 28270347349. The next prime is 28270347383. The reversal of 28270347366 is 66374307282.

It is an interprime number because it is at equal distance from previous prime (28270347349) and next prime (28270347383).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141810 + ... + 276858.

It is an arithmetic number, because the mean of its divisors is an integer number (1786711500).

Almost surely, 228270347366 is an apocalyptic number.

28270347366 is an abundant number, since it is smaller than the sum of its proper divisors (28904420634).

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

28270347366 is a wasteful number, since it uses less digits than its factorization.

28270347366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135444.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 28270347366 in words is "twenty-eight billion, two hundred seventy million, three hundred forty-seven thousand, three hundred sixty-six".

Divisors: 1 2 3 6 139 251 278 417 502 753 834 1506 34889 69778 104667 135049 209334 270098 405147 810294 18771811 33897299 37543622 56315433 67794598 101691897 112630866 203383794 4711724561 9423449122 14135173683 28270347366