Search a number
-
+
231323133323200 = 2652756119121407
BaseRepresentation
bin110100100110001100011101…
…001100001010011111000000
31010100001021102220002211220211
4310212030131030022133000
5220304444234112320300
62135552214055443504
766503354613466402
oct6446143514123700
91110037386084824
10231323133323200
11677856541a7716
1221b3bb81386594
139c0c8a7394989
14411a156a30b72
151bb23a3b364ba
hexd2631d30a7c0

231323133323200 has 84 divisors (see below), whose sum is σ = 569274795684352. Its totient is φ = 92517010790400.

The previous prime is 231323133323197. The next prime is 231323133323201. The reversal of 231323133323200 is 2323331323132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323133323201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536897 + ... + 21658303.

Almost surely, 2231323133323200 is an apocalyptic number.

231323133323200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231323133323200 is an abundant number, since it is smaller than the sum of its proper divisors (337951662361152).

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

231323133323200 is a wasteful number, since it uses less digits than its factorization.

231323133323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19128990 (or 19128975 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 31.

Adding to 231323133323200 its reverse (2323331323132), we get a palindrome (233646464646332).

The spelling of 231323133323200 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 7561 15122 30244 37805 60488 75610 120976 151220 189025 241952 302440 378050 483904 604880 756100 1209760 1512200 2419520 3024400 6048800 12097600 19121407 38242814 76485628 95607035 152971256 191214070 305942512 382428140 478035175 611885024 764856280 956070350 1223770048 1529712560 1912140700 3059425120 3824281400 6118850240 7648562800 15297125600 30594251200 144576958327 289153916654 578307833308 722884791635 1156615666616 1445769583270 2313231333232 2891539166540 3614423958175 4626462666464 5783078333080 7228847916350 9252925332928 11566156666160 14457695832700 23132313332320 28915391665400 46264626664640 57830783330800 115661566661600 231323133323200