Search a number
-
+
190020021032 = 23176122905017
BaseRepresentation
bin1011000011111000010…
…0110110101100101000
3200011110211012020001202
42300332010312230220
511103130111133112
6223143300303332
716504605346262
oct2607604665450
9604424166052
10190020021032
11736503912a6
12309b13a1b48
1314bc382188a
1492a8890b32
154e2221d6c2
hex2c3e136b28

190020021032 has 32 divisors (see below), whose sum is σ = 383430001320. Its totient is φ = 87955261440.

The previous prime is 190020021017. The next prime is 190020021053. The reversal of 190020021032 is 230120020091.

It can be written as a sum of positive squares in 4 ways, for example, as 78553515076 + 111466505956 = 280274^2 + 333866^2 .

It is a super-2 number, since 2×1900200210322 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190020020995 and 190020021013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11444213 + ... + 11460804.

Almost surely, 2190020021032 is an apocalyptic number.

It is an amenable number.

190020021032 is an abundant number, since it is smaller than the sum of its proper divisors (193409980288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190020021032 is a wasteful number, since it uses less digits than its factorization.

190020021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22905101 (or 22905097 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 190020021032 in words is "one hundred ninety billion, twenty million, twenty-one thousand, thirty-two".

Divisors: 1 2 4 8 17 34 61 68 122 136 244 488 1037 2074 4148 8296 22905017 45810034 91620068 183240136 389385289 778770578 1397206037 1557541156 2794412074 3115082312 5588824148 11177648296 23752502629 47505005258 95010010516 190020021032