Search a number
-
+
145230056120 = 23531734915937
BaseRepresentation
bin1000011101000001100…
…0101100101010111000
3111212212022222020222102
42013100120230222320
54334412343243440
6150415012042532
713330636052222
oct2072030545270
9455768866872
10145230056120
1156656642776
1224191303448
131090629c566
14705a097412
153b9ee6cb15
hex21d062cab8

145230056120 has 64 divisors (see below), whose sum is σ = 337375584000. Its totient is φ = 56206909440.

The previous prime is 145230056117. The next prime is 145230056129. The reversal of 145230056120 is 21650032541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145230056129) 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, 9104792 + ... + 9120728.

It is an arithmetic number, because the mean of its divisors is an integer number (5271493500).

Almost surely, 2145230056120 is an apocalyptic number.

145230056120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145230056120 is an abundant number, since it is smaller than the sum of its proper divisors (192145527880).

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

145230056120 is a wasteful number, since it uses less digits than its factorization.

145230056120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23328 (or 23324 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 145230056120 its reverse (21650032541), we get a palindrome (166880088661).

The spelling of 145230056120 in words is "one hundred forty-five billion, two hundred thirty million, fifty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 7349 14698 15937 29396 31874 36745 58792 63748 73490 79685 127496 146980 159370 227819 293960 318740 455638 494047 637480 911276 988094 1139095 1822552 1976188 2278190 2470235 3952376 4556380 4940470 9112760 9880940 19761880 117121013 234242026 468484052 585605065 936968104 1171210130 2342420260 3630751403 4684840520 7261502806 14523005612 18153757015 29046011224 36307514030 72615028060 145230056120