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203420031130 = 25431155330391
BaseRepresentation
bin1011110101110011000…
…1110101100010011010
3201110001200200021020001
42331130301311202122
511313101011444010
6233241101123214
720460636510151
oct2753461654232
9643050607201
10203420031130
11792a7339208
1233510b5950a
131624aa39634
149bba3c4598
155458836c3a
hex2f5cc7589a

203420031130 has 32 divisors (see below), whose sum is σ = 367254010368. Its totient is φ = 81124281600.

The previous prime is 203420031119. The next prime is 203420031161. The reversal of 203420031130 is 31130024302.

It is a junction number, because it is equal to n+sod(n) for n = 203420031098 and 203420031107.

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, 6678235 + ... + 6708625.

It is an arithmetic number, because the mean of its divisors is an integer number (11476687824).

Almost surely, 2203420031130 is an apocalyptic number.

203420031130 is a deficient number, since it is larger than the sum of its proper divisors (163833979238).

203420031130 is a wasteful number, since it uses less digits than its factorization.

203420031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32382.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 203420031130 its reverse (31130024302), we get a palindrome (234550055432).

The spelling of 203420031130 in words is "two hundred three billion, four hundred twenty million, thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 431 862 1553 2155 3106 4310 7765 15530 30391 60782 151955 303910 669343 1338686 3346715 6693430 13098521 26197042 47197223 65492605 94394446 130985210 235986115 471972230 20342003113 40684006226 101710015565 203420031130