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1906770054 = 23745399287
BaseRepresentation
bin111000110100111…
…0000000010000110
311220212220221210010
41301221300002012
512401113120204
6513112411050
765152164240
oct16151600206
94825827703
101906770054
1189935a622
124526a6a86
13245064207
1414134b090
15b25e8d89
hex71a70086

1906770054 has 16 divisors (see below), whose sum is σ = 4358331648. Its totient is φ = 544791432.

The previous prime is 1906770049. The next prime is 1906770071. The reversal of 1906770054 is 4500776091.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1906769994 and 1906770021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22699602 + ... + 22699685.

It is an arithmetic number, because the mean of its divisors is an integer number (272395728).

Almost surely, 21906770054 is an apocalyptic number.

1906770054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1906770054 is an abundant number, since it is smaller than the sum of its proper divisors (2451561594).

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

1906770054 is a wasteful number, since it uses less digits than its factorization.

1906770054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45399299.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 1906770054 is about 43666.5782263735. The cubic root of 1906770054 is about 1240.0316619560.

The spelling of 1906770054 in words is "one billion, nine hundred six million, seven hundred seventy thousand, fifty-four".

Divisors: 1 2 3 6 7 14 21 42 45399287 90798574 136197861 272395722 317795009 635590018 953385027 1906770054