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31223432230030 = 2523327414888951
BaseRepresentation
bin1110001100101110001011…
…00101100011010010001110
311002112221010200021111012001
413012113011211203102032
513043031042122330110
6150223502521502514
76401550520640545
oct706270545432216
9132487120244161
1031223432230030
119a48868556407
123603388341a3a
131456484500711
1479d31795715c
153922d6c0263a
hex1c65c596348e

31223432230030 has 32 divisors (see below), whose sum is σ = 56463992889408. Its totient is φ = 12431230944000.

The previous prime is 31223432230027. The next prime is 31223432230063. The reversal of 31223432230030 is 3003223432213.

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, 3942055 + ... + 8831005.

It is an arithmetic number, because the mean of its divisors is an integer number (1764499777794).

Almost surely, 231223432230030 is an apocalyptic number.

31223432230030 is a deficient number, since it is larger than the sum of its proper divisors (25240560659378).

31223432230030 is a wasteful number, since it uses less digits than its factorization.

31223432230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891932.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 31223432230030 its reverse (3003223432213), we get a palindrome (34226655662243).

The spelling of 31223432230030 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, two hundred thirty thousand, thirty".

Divisors: 1 2 5 10 233 466 1165 2330 2741 5482 13705 27410 638653 1277306 3193265 4888951 6386530 9777902 24444755 48889510 1139125583 2278251166 5695627915 11391255830 13400614691 26801229382 67003073455 134006146910 3122343223003 6244686446006 15611716115015 31223432230030