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73000054961 = 2691733156593
BaseRepresentation
bin100001111111100100…
…1000111000010110001
320222102111111000121022
41003333021013002301
52144001003224321
653311420305225
75163003141401
oct1037711070261
9228374430538
1073000054961
1128a6069a839
12121936a2215
136b64b4abc2
143767234801
151d73bb5dab
hex10ff2470b1

73000054961 has 8 divisors (see below), whose sum is σ = 73314178920. Its totient is φ = 72686248192.

The previous prime is 73000054903. The next prime is 73000055017. The reversal of 73000054961 is 16945000037.

It can be written as a sum of positive squares in 4 ways, for example, as 897601600 + 72102453361 = 29960^2 + 268519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73000054961 - 210 = 73000053937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73000050961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387881 + ... + 544473.

It is an arithmetic number, because the mean of its divisors is an integer number (9164272365).

Almost surely, 273000054961 is an apocalyptic number.

It is an amenable number.

73000054961 is a deficient number, since it is larger than the sum of its proper divisors (314123959).

73000054961 is a wasteful number, since it uses less digits than its factorization.

73000054961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158595.

The product of its (nonzero) digits is 22680, while the sum is 35.

Adding to 73000054961 its reverse (16945000037), we get a palindrome (89945054998).

The spelling of 73000054961 in words is "seventy-three billion, fifty-four thousand, nine hundred sixty-one".

Divisors: 1 269 1733 156593 466177 42123517 271375669 73000054961