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42954542973 = 332971772661
BaseRepresentation
bin101000000000010010…
…100100111101111101
311002212120112212112000
4220000102210331331
51200432330333343
631422200532513
73050311406466
oct500022447575
9132776485460
1042954542973
11172427a09a1
1283a9481139
13408720c444
142116b3dd6d
1511b609bed3
hexa004a4f7d

42954542973 has 32 divisors (see below), whose sum is σ = 66757996800. Its totient is φ = 27259444800.

The previous prime is 42954542947. The next prime is 42954543011. The reversal of 42954542973 is 37924545924.

It is a happy number.

42954542973 is a `hidden beast` number, since 4 + 2 + 9 + 5 + 4 + 542 + 97 + 3 = 666.

It is not a de Polignac number, because 42954542973 - 26 = 42954542909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42954542933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330738 + ... + 441923.

It is an arithmetic number, because the mean of its divisors is an integer number (2086187400).

Almost surely, 242954542973 is an apocalyptic number.

It is an amenable number.

42954542973 is a deficient number, since it is larger than the sum of its proper divisors (23803453827).

42954542973 is a wasteful number, since it uses less digits than its factorization.

42954542973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772770 (or 772764 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 42954542973 in words is "forty-two billion, nine hundred fifty-four million, five hundred forty-two thousand, nine hundred seventy-three".

Divisors: 1 3 9 27 29 71 87 213 261 639 783 1917 2059 6177 18531 55593 772661 2317983 6953949 20861847 22407169 54858931 67221507 164576793 201664521 493730379 604993563 1481191137 1590908999 4772726997 14318180991 42954542973