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145012261044 = 223710915837949
BaseRepresentation
bin1000011100001101100…
…1111000000010110100
3111212022011011010022010
42013003121320002310
54333441114323134
6150341232004220
713322352611160
oct2070331700264
9455264133263
10145012261044
1156554706042
1224130390670
13108a0124631
1470391a1ca0
153b8ac9ace9
hex21c36780b4

145012261044 has 48 divisors (see below), whose sum is σ = 390247088000. Its totient is φ = 41051961216.

The previous prime is 145012261003. The next prime is 145012261109. The reversal of 145012261044 is 440162210541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7909819 + ... + 7928130.

Almost surely, 2145012261044 is an apocalyptic number.

145012261044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145012261044 is an abundant number, since it is smaller than the sum of its proper divisors (245234826956).

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

145012261044 is a wasteful number, since it uses less digits than its factorization.

145012261044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15838072 (or 15838070 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 145012261044 its reverse (440162210541), we get a palindrome (585174471585).

The spelling of 145012261044 in words is "one hundred forty-five billion, twelve million, two hundred sixty-one thousand, forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 109 218 327 436 654 763 1308 1526 2289 3052 4578 9156 15837949 31675898 47513847 63351796 95027694 110865643 190055388 221731286 332596929 443462572 665193858 1330387716 1726336441 3452672882 5179009323 6905345764 10358018646 12084355087 20716037292 24168710174 36253065261 48337420348 72506130522 145012261044