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2404004020 = 22511101108191
BaseRepresentation
bin1000111101001010…
…0011000010110100
320012112120001112221
42033102203002310
514410411112040
61034314052124
7113400461035
oct21722430264
96175501487
102404004020
111023aa7890
1257111a044
132c408b2b2
1418b3c2a8c
15e10b774a
hex8f4a30b4

2404004020 has 48 divisors (see below), whose sum is σ = 5561934336. Its totient is φ = 865520000.

The previous prime is 2404004011. The next prime is 2404004087. The reversal of 2404004020 is 204004042.

It is a junction number, because it is equal to n+sod(n) for n = 2404003985 and 2404004003.

It is a congruent number.

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, 31876 + ... + 76315.

It is an arithmetic number, because the mean of its divisors is an integer number (115873632).

Almost surely, 22404004020 is an apocalyptic number.

2404004020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2404004020 is an abundant number, since it is smaller than the sum of its proper divisors (3157930316).

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

2404004020 is a wasteful number, since it uses less digits than its factorization.

2404004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108312 (or 108310 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2404004020 is about 49030.6436833130. The cubic root of 2404004020 is about 1339.6100484089.

Adding to 2404004020 its reverse (204004042), we get a palindrome (2608008062).

The spelling of 2404004020 in words is "two billion, four hundred four million, four thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 1010 1111 2020 2222 4444 5555 11110 22220 108191 216382 432764 540955 1081910 1190101 2163820 2380202 4760404 5950505 10927291 11901010 21854582 23802020 43709164 54636455 109272910 120200201 218545820 240400402 480800804 601001005 1202002010 2404004020