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1293940292830 = 25139930892297
BaseRepresentation
bin10010110101000100110…
…110011111110011011110
311120200212220221102201021
4102311010312133303132
5132144442203332310
62430232235034354
7162325022005543
oct22650466376336
94520786842637
101293940292830
11459836620539
1218a935b9b9ba
1395030854ab3
14468ac876bca
15239d1e465da
hex12d44d9fcde

1293940292830 has 16 divisors (see below), whose sum is σ = 2345848590960. Its totient is φ = 513852547392.

The previous prime is 1293940292809. The next prime is 1293940292833. The reversal of 1293940292830 is 382920493921.

It is a super-2 number, since 2×12939402928302 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293940292833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465444759 + ... + 465447538.

It is an arithmetic number, because the mean of its divisors is an integer number (146615536935).

Almost surely, 21293940292830 is an apocalyptic number.

1293940292830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1293940292830 is a deficient number, since it is larger than the sum of its proper divisors (1051908298130).

1293940292830 is a wasteful number, since it uses less digits than its factorization.

1293940292830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930892443.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 1293940292830 in words is "one trillion, two hundred ninety-three billion, nine hundred forty million, two hundred ninety-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 139 278 695 1390 930892297 1861784594 4654461485 9308922970 129394029283 258788058566 646970146415 1293940292830