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454545504942 = 231223125949201
BaseRepresentation
bin1101001110101010000…
…01011111101010101110
31121110021001120010011120
412213111001133222232
524421402122124232
6544452035401410
744561030020524
oct6472501375256
91543231503146
10454545504942
111658540a6601
1274116453266
1333b2c027c59
1418000486314
15bc5536992c
hex69d505faae

454545504942 has 32 divisors (see below), whose sum is σ = 910575509760. Its totient is φ = 151267958400.

The previous prime is 454545504929. The next prime is 454545504949. The reversal of 454545504942 is 249405545454.

It is a super-2 number, since 2×4545455049422 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454545504949) 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, 9213942 + ... + 9263142.

It is an arithmetic number, because the mean of its divisors is an integer number (28455484680).

Almost surely, 2454545504942 is an apocalyptic number.

454545504942 is an abundant number, since it is smaller than the sum of its proper divisors (456030004818).

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

454545504942 is a wasteful number, since it uses less digits than its factorization.

454545504942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51688.

The product of its (nonzero) digits is 11520000, while the sum is 51.

The spelling of 454545504942 in words is "four hundred fifty-four billion, five hundred forty-five million, five hundred four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 1223 1259 2446 2518 3669 3777 7338 7554 49201 98402 147603 295206 1539757 3079514 4619271 9238542 60172823 61944059 120345646 123888118 180518469 185832177 361036938 371664354 75757584157 151515168314 227272752471 454545504942