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54537662090 = 25171481216617
BaseRepresentation
bin110010110010101100…
…101010111010001010
312012202211020021210202
4302302230222322022
51343143120141330
641015415212202
73640331323202
oct626254527212
9165684207722
1054537662090
11211470a780a
12a6a0677062
1351b1ba1b92
1428d5241402
151642e22445
hexcb2b2ae8a

54537662090 has 32 divisors (see below), whose sum is σ = 104013031824. Its totient is φ = 20517867520.

The previous prime is 54537662071. The next prime is 54537662093. The reversal of 54537662090 is 9026673545.

54537662090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2335332+1.

It can be written as a sum of positive squares in 8 ways, for example, as 42460311481 + 12077350609 = 206059^2 + 109897^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54537662093) 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, 143462 + ... + 360078.

Almost surely, 254537662090 is an apocalyptic number.

54537662090 is a deficient number, since it is larger than the sum of its proper divisors (49475369734).

54537662090 is a wasteful number, since it uses less digits than its factorization.

54537662090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218122.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 54537662090 in words is "fifty-four billion, five hundred thirty-seven million, six hundred sixty-two thousand, ninety".

Divisors: 1 2 5 10 17 34 85 170 1481 2962 7405 14810 25177 50354 125885 216617 251770 433234 1083085 2166170 3682489 7364978 18412445 36824890 320809777 641619554 1604048885 3208097770 5453766209 10907532418 27268831045 54537662090