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31453151324 = 2271779978623
BaseRepresentation
bin11101010010110000…
…010000000001011100
310000012000122122020112
4131102300100001130
51003404001320244
622241022105152
72162303242430
oct352260200134
9100160578215
1031453151324
1112380536141
12611971b1b8
132c7346345a
1417454349c0
15c414bc39e
hex752c1005c

31453151324 has 96 divisors (see below), whose sum is σ = 68153057280. Its totient is φ = 12395814912.

The previous prime is 31453151311. The next prime is 31453151329. The reversal of 31453151324 is 42315135413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31453151329) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3643277 + ... + 3651899.

It is an arithmetic number, because the mean of its divisors is an integer number (709927680).

Almost surely, 231453151324 is an apocalyptic number.

31453151324 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31453151324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34076528640).

31453151324 is an abundant number, since it is smaller than the sum of its proper divisors (36699905956).

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

31453151324 is a wasteful number, since it uses less digits than its factorization.

31453151324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827 (or 8825 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 31453151324 its reverse (42315135413), we get a palindrome (73768286737).

The spelling of 31453151324 in words is "thirty-one billion, four hundred fifty-three million, one hundred fifty-one thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 17 28 34 68 79 97 119 158 194 238 316 388 476 553 679 1106 1343 1358 1649 2212 2686 2716 3298 5372 6596 7663 8623 9401 11543 15326 17246 18802 23086 30652 34492 37604 46172 53641 60361 107282 120722 130271 146591 214564 241444 260542 293182 521084 586364 681217 836431 911897 1026137 1362434 1672862 1823794 2052274 2724868 3345724 3647588 4104548 4768519 5855017 9537038 11580689 11710034 14219327 19074076 23161378 23420068 28438654 46322756 56877308 66078049 81064823 99535289 132156098 162129646 199070578 264312196 324259292 398141156 462546343 925092686 1123326833 1850185372 2246653666 4493307332 7863287831 15726575662 31453151324