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1421846874 = 232719231259
BaseRepresentation
bin101010010111111…
…1010100101011010
310200002110022020100
41110233322211122
510402443044444
6353031040230
750143333110
oct12457724532
93602408210
101421846874
1166a660668
12338210076
1319875a716
14d6b9bab0
1584c5ce69
hex54bfa95a

1421846874 has 72 divisors (see below), whose sum is σ = 3715938720. Its totient is φ = 384848496.

The previous prime is 1421846849. The next prime is 1421846879. The reversal of 1421846874 is 4786481241.

It is not an unprimeable number, because it can be changed into a prime (1421846879) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29857 + ... + 61115.

It is an arithmetic number, because the mean of its divisors is an integer number (51610260).

Almost surely, 21421846874 is an apocalyptic number.

1421846874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421846874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1857969360).

1421846874 is an abundant number, since it is smaller than the sum of its proper divisors (2294091846).

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

1421846874 is a wasteful number, since it uses less digits than its factorization.

1421846874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31312 (or 31290 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 1421846874 is about 37707.3848735231. The cubic root of 1421846874 is about 1124.4779468172.

The spelling of 1421846874 in words is "one billion, four hundred twenty-one million, eight hundred forty-six thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 266 342 361 399 722 798 1083 1197 2166 2394 2527 3249 5054 6498 7581 15162 22743 31259 45486 62518 93777 187554 218813 281331 437626 562662 593921 656439 1187842 1312878 1781763 1969317 3563526 3938634 4157447 5345289 8314894 10690578 11284499 12472341 22568998 24944682 33853497 37417023 67706994 74834046 78991493 101560491 157982986 203120982 236974479 473948958 710923437 1421846874