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4002423140 = 225227881591
BaseRepresentation
bin1110111010010000…
…0010000101100100
3101022221021011101002
43232210002011210
531144110020030
61501053452432
7201120015062
oct35644020544
911287234332
104002423140
111774299821
129384a1118
134ba28c621
1429d7c5032
151865a3245
hexee902164

4002423140 has 24 divisors (see below), whose sum is σ = 8442124992. Its totient is φ = 1593914720.

The previous prime is 4002423097. The next prime is 4002423181. The reversal of 4002423140 is 413242004.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436256 + ... + 445335.

It is an arithmetic number, because the mean of its divisors is an integer number (351755208).

Almost surely, 24002423140 is an apocalyptic number.

It is an amenable number.

4002423140 is an abundant number, since it is smaller than the sum of its proper divisors (4439701852).

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

4002423140 is a wasteful number, since it uses less digits than its factorization.

4002423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881827 (or 881825 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4002423140 is about 63264.7069067739. The cubic root of 4002423140 is about 1587.7215285124.

Adding to 4002423140 its reverse (413242004), we get a palindrome (4415665144).

The spelling of 4002423140 in words is "four billion, two million, four hundred twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 227 454 908 1135 2270 4540 881591 1763182 3526364 4407955 8815910 17631820 200121157 400242314 800484628 1000605785 2001211570 4002423140