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145165230210 = 2357111314932443
BaseRepresentation
bin1000011100110010000…
…1011010000010000010
3111212200210222202112210
42013030201122002002
54334244244331320
6150404334402550
713326221045340
oct2071441320202
9455623882483
10145165230210
1156622a96040
1224173660456
13108c5a22b30
147051620990
153b994150e0
hex21cc85a082

145165230210 has 256 divisors, whose sum is σ = 470931148800. Its totient is φ = 27656156160.

The previous prime is 145165230169. The next prime is 145165230239. The reversal of 145165230210 is 12032561541.

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

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 4458249 + ... + 4490691.

It is an arithmetic number, because the mean of its divisors is an integer number (1839574800).

Almost surely, 2145165230210 is an apocalyptic number.

145165230210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145165230210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235465574400).

145165230210 is an abundant number, since it is smaller than the sum of its proper divisors (325765918590).

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

145165230210 is a wasteful number, since it uses less digits than its factorization.

145165230210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32633.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 145165230210 its reverse (12032561541), we get a palindrome (157197791751).

The spelling of 145165230210 in words is "one hundred forty-five billion, one hundred sixty-five million, two hundred thirty thousand, two hundred ten".