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1227074140 = 22561353707
BaseRepresentation
bin100100100100011…
…1010101001011100
310011111221211021101
41021020322221130
510003112333030
6321432242444
742256646425
oct11110725134
93144854241
101227074140
1157a718a66
122a2b40424
131672b3796
14b8d7a64c
1572ad77ca
hex4923aa5c

1227074140 has 12 divisors (see below), whose sum is σ = 2576855736. Its totient is φ = 490829648.

The previous prime is 1227074111. The next prime is 1227074141. The reversal of 1227074140 is 414707221.

It is a junction number, because it is equal to n+sod(n) for n = 1227074099 and 1227074108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227074141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30676834 + ... + 30676873.

It is an arithmetic number, because the mean of its divisors is an integer number (214737978).

Almost surely, 21227074140 is an apocalyptic number.

1227074140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1227074140 is an abundant number, since it is smaller than the sum of its proper divisors (1349781596).

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

1227074140 is a wasteful number, since it uses less digits than its factorization.

1227074140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61353716 (or 61353714 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 1227074140 is about 35029.6180395961. The cubic root of 1227074140 is about 1070.5910322529.

The spelling of 1227074140 in words is "one billion, two hundred twenty-seven million, seventy-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 61353707 122707414 245414828 306768535 613537070 1227074140