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2029973387 = 13156151799
BaseRepresentation
bin111100011111110…
…1110111110001011
312020110202022222112
41320333232332023
513124133122022
6533233212535
7101206326521
oct17077567613
95213668875
102029973387
1195195a062
12487a0114b
132647401b0
1415385c311
15bd3338e2
hex78feef8b

2029973387 has 4 divisors (see below), whose sum is σ = 2186125200. Its totient is φ = 1873821576.

The previous prime is 2029973377. The next prime is 2029973389. The reversal of 2029973387 is 7833799202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2029973387 - 216 = 2029907851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029973389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78075887 + ... + 78075912.

It is an arithmetic number, because the mean of its divisors is an integer number (546531300).

Almost surely, 22029973387 is an apocalyptic number.

2029973387 is a deficient number, since it is larger than the sum of its proper divisors (156151813).

2029973387 is a wasteful number, since it uses less digits than its factorization.

2029973387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156151812.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 2029973387 is about 45055.2259676944. The cubic root of 2029973387 is about 1266.1838837958.

The spelling of 2029973387 in words is "two billion, twenty-nine million, nine hundred seventy-three thousand, three hundred eighty-seven".

Divisors: 1 13 156151799 2029973387