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421205383502124 = 2231311393236990653
BaseRepresentation
bin101111111000101011000010…
…1010000101101100100101100
32001020100211201101102222100120
41133301112011100231210230
5420202012111134031444
64051455025404524540
7154502041026454614
oct13761260520554454
92036324641388316
10421205383502124
11112233222204631
123b2a8512850750
13151046605612b0
147602640d9da44
1533a67ba60bb19
hex17f158542d92c

421205383502124 has 48 divisors (see below), whose sum is σ = 1058506432576992. Its totient is φ = 129590280364032.

The previous prime is 421205383502063. The next prime is 421205383502171.

421205383502124 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×4212053835021242 (a number of 30 digits) contains 22 as substring.

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, 116718019 + ... + 120272634.

It is an arithmetic number, because the mean of its divisors is an integer number (22052217345354).

Almost surely, 2421205383502124 is an apocalyptic number.

It is an amenable number.

421205383502124 is an abundant number, since it is smaller than the sum of its proper divisors (637301049074868).

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

421205383502124 is a wasteful number, since it uses less digits than its factorization.

421205383502124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237002066 (or 237002064 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 421205383502124 in words is "four hundred twenty-one trillion, two hundred five billion, three hundred eighty-three million, five hundred two thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 11393 22786 34179 45572 68358 136716 148109 296218 444327 592436 888654 1777308 236990653 473981306 710971959 947962612 1421943918 2843887836 3080878489 6161756978 9242635467 12323513956 18485270934 36970541868 2700034509629 5400069019258 8100103528887 10800138038516 16200207057774 32400414115548 35100448625177 70200897250354 105301345875531 140401794500708 210602691751062 421205383502124