Search a number
-
+
231973036 = 22118748857
BaseRepresentation
bin11011101001110…
…10000010101100
3121011111110011221
431310322002230
5433341114121
635003553124
75514511141
oct1564720254
9534443157
10231973036
11109a40859
126582b7a4
13390a0369
1422b463c8
1515572b41
hexdd3a0ac

231973036 has 12 divisors (see below), whose sum is σ = 406303128. Its totient is φ = 115886432.

The previous prime is 231973013. The next prime is 231973043. The reversal of 231973036 is 630379132.

231973036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2319730362 = 107622978862114592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231972992 and 231973010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19681 + ... + 29176.

It is an arithmetic number, because the mean of its divisors is an integer number (33858594).

Almost surely, 2231973036 is an apocalyptic number.

It is an amenable number.

231973036 is a deficient number, since it is larger than the sum of its proper divisors (174330092).

231973036 is a wasteful number, since it uses less digits than its factorization.

231973036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50048 (or 50046 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 231973036 is about 15230.6610493439. The cubic root of 231973036 is about 614.4395590566.

The spelling of 231973036 in words is "two hundred thirty-one million, nine hundred seventy-three thousand, thirty-six".

Divisors: 1 2 4 1187 2374 4748 48857 97714 195428 57993259 115986518 231973036