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10380020399 = 721819911181
BaseRepresentation
bin10011010101011001…
…01000101010101111
3222210101211200002222
421222230220222233
5132224241123044
64433555505555
7515140501100
oct115254505257
928711750088
1010380020399
114447283a61
1220182b82bb
13c95654a08
147068063a7
1540b4268ee
hex26ab28aaf

10380020399 has 24 divisors (see below), whose sum is σ = 12163971456. Its totient is φ = 8831592000.

The previous prime is 10380020383. The next prime is 10380020401. The reversal of 10380020399 is 99302008301.

It is not a de Polignac number, because 10380020399 - 24 = 10380020383 is a prime.

It is a super-2 number, since 2×103800203992 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10380020099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8788589 + ... + 8789769.

It is an arithmetic number, because the mean of its divisors is an integer number (506832144).

Almost surely, 210380020399 is an apocalyptic number.

10380020399 is a deficient number, since it is larger than the sum of its proper divisors (1783951057).

10380020399 is a wasteful number, since it uses less digits than its factorization.

10380020399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2360 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 10380020399 in words is "ten billion, three hundred eighty million, twenty thousand, three hundred ninety-nine".

Divisors: 1 7 49 181 991 1181 1267 6937 8267 8869 48559 57869 179371 213761 1170371 1255597 1496327 8192597 8789179 10474289 57348179 211837151 1482860057 10380020399