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145351240230 = 2357692148763
BaseRepresentation
bin1000011101011110011…
…0111110101000100110
3111220011210000001022210
42013113212332220212
54340134404141410
6150435021304250
713333640104530
oct2072746765046
9456153001283
10145351240230
1156708a93129
1224205a05086
131092541c431
14706c200850
153baa909220
hex21d79bea26

145351240230 has 32 divisors (see below), whose sum is σ = 398677688064. Its totient is φ = 33223140576.

The previous prime is 145351240211. The next prime is 145351240231. The reversal of 145351240230 is 32042153541.

It is a super-2 number, since 2×1453512402302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145351240231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346074172 + ... + 346074591.

It is an arithmetic number, because the mean of its divisors is an integer number (12458677752).

Almost surely, 2145351240230 is an apocalyptic number.

145351240230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145351240230 is an abundant number, since it is smaller than the sum of its proper divisors (253326447834).

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

145351240230 is a wasteful number, since it uses less digits than its factorization.

145351240230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692148780.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 145351240230 its reverse (32042153541), we get a palindrome (177393393771).

The spelling of 145351240230 in words is "one hundred forty-five billion, three hundred fifty-one million, two hundred forty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 692148763 1384297526 2076446289 3460743815 4152892578 4845041341 6921487630 9690082682 10382231445 14535124023 20764462890 24225206705 29070248046 48450413410 72675620115 145351240230