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1053423020 = 2251317238331
BaseRepresentation
bin111110110010011…
…111010110101100
32201102012102201102
4332302133112230
54124134014040
6252310302232
735050643066
oct7662372654
92642172642
101053423020
114a06a2341
12254957978
1313a323640
149dc96736
1562735515
hex3ec9f5ac

1053423020 has 48 divisors (see below), whose sum is σ = 2522505888. Its totient is φ = 366074880.

The previous prime is 1053423013. The next prime is 1053423029. The reversal of 1053423020 is 203243501.

It is a happy number.

It is a super-2 number, since 2×10534230202 = 2219400118131840800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1053422983 and 1053423001.

It is not an unprimeable number, because it can be changed into a prime (1053423029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114746 + ... + 123585.

It is an arithmetic number, because the mean of its divisors is an integer number (52552206).

Almost surely, 21053423020 is an apocalyptic number.

1053423020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1053423020 is an abundant number, since it is smaller than the sum of its proper divisors (1469082868).

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

1053423020 is a wasteful number, since it uses less digits than its factorization.

1053423020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238370 (or 238368 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1053423020 is about 32456.4788601598. The cubic root of 1053423020 is about 1017.4996492583.

Adding to 1053423020 its reverse (203243501), we get a palindrome (1256666521).

The spelling of 1053423020 in words is "one billion, fifty-three million, four hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 170 221 260 340 442 884 1105 2210 4420 238331 476662 953324 1191655 2383310 3098303 4051627 4766620 6196606 8103254 12393212 15491515 16206508 20258135 30983030 40516270 52671151 61966060 81032540 105342302 210684604 263355755 526711510 1053423020