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145451650452 = 223671237146249
BaseRepresentation
bin1000011101110110011…
…0000000110110010100
3111220102202221102020220
42013131212000312110
54340341110303302
6150453005354340
713336266425643
oct2073546006624
9456382842226
10145451650452
115675a734889
12242335689b0
1310940177874
14707b69b35a
153bb46404bc
hex21dd980d94

145451650452 has 48 divisors (see below), whose sum is σ = 344733480000. Its totient is φ = 47721307392.

The previous prime is 145451650427. The next prime is 145451650457. The reversal of 145451650452 is 254056154541.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145451650457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921424 + ... + 1067672.

It is an arithmetic number, because the mean of its divisors is an integer number (7181947500).

Almost surely, 2145451650452 is an apocalyptic number.

145451650452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145451650452 is an abundant number, since it is smaller than the sum of its proper divisors (199281829548).

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

145451650452 is a wasteful number, since it uses less digits than its factorization.

145451650452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147560 (or 147558 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 145451650452 in words is "one hundred forty-five billion, four hundred fifty-one million, six hundred fifty thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 1237 2474 3711 4948 7422 14844 82879 146249 165758 248637 292498 331516 438747 497274 584996 877494 994548 1754988 9798683 19597366 29396049 39194732 58792098 117584196 180910013 361820026 542730039 723640052 1085460078 2170920156 12120970871 24241941742 36362912613 48483883484 72725825226 145451650452