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1040223020 = 225197934651
BaseRepresentation
bin111110000000001…
…000101100101100
32200111100210201112
4332000020230230
54112244114040
6251115331152
734530515114
oct7600105454
92614323645
101040223020
114941a6a51
12250450ab8
131376813a5
149c21c044
15614c9365
hex3e008b2c

1040223020 has 48 divisors (see below), whose sum is σ = 2328614400. Its totient is φ = 389188800.

The previous prime is 1040223007. The next prime is 1040223029. The reversal of 1040223020 is 203220401.

It is a junction number, because it is equal to n+sod(n) for n = 1040222986 and 1040223004.

It is not an unprimeable number, because it can be changed into a prime (1040223029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12695 + ... + 47345.

It is an arithmetic number, because the mean of its divisors is an integer number (48512800).

Almost surely, 21040223020 is an apocalyptic number.

1040223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164307200).

1040223020 is an abundant number, since it is smaller than the sum of its proper divisors (1288391380).

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

1040223020 is a wasteful number, since it uses less digits than its factorization.

1040223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34758 (or 34756 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1040223020 is about 32252.4885861541. The cubic root of 1040223020 is about 1013.2318200576.

Adding to 1040223020 its reverse (203220401), we get a palindrome (1243443421).

The spelling of 1040223020 in words is "one billion, forty million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 79 95 158 190 316 380 395 790 1501 1580 3002 6004 7505 15010 30020 34651 69302 138604 173255 346510 658369 693020 1316738 2633476 2737429 3291845 5474858 6583690 10949716 13167380 13687145 27374290 52011151 54748580 104022302 208044604 260055755 520111510 1040223020