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145323386279 = 1729225739551
BaseRepresentation
bin1000011101010111110…
…0101110010110100111
3111220002211120220212222
42013111330232112213
54340110241330104
6150432144302555
713333151254631
oct2072574562647
9456084526788
10145323386279
11566a4299035
12241b8611a5b
131091c7191c6
14706862da51
153ba82561be
hex21d5f2e5a7

145323386279 has 24 divisors (see below), whose sum is σ = 159984834048. Its totient is φ = 131541401600.

The previous prime is 145323386261. The next prime is 145323386413. The reversal of 145323386279 is 972683323541.

It is not a de Polignac number, because 145323386279 - 28 = 145323386023 is a prime.

It is a super-2 number, since 2×1453233862792 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145323386279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145323386179) 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, 3654554 + ... + 3694104.

It is an arithmetic number, because the mean of its divisors is an integer number (6666034752).

Almost surely, 2145323386279 is an apocalyptic number.

145323386279 is a deficient number, since it is larger than the sum of its proper divisors (14661447769).

145323386279 is a wasteful number, since it uses less digits than its factorization.

145323386279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39883 (or 39854 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 53.

The spelling of 145323386279 in words is "one hundred forty-five billion, three hundred twenty-three million, three hundred eighty-six thousand, two hundred seventy-nine".

Divisors: 1 17 29 257 493 841 4369 7453 14297 39551 126701 216137 672367 1146979 3674329 10164607 19498643 33262391 172798319 294773603 565460647 5011151251 8548434487 145323386279