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1381222037 = 13591800811
BaseRepresentation
bin101001001010011…
…1100011010010101
310120021000100102202
41102110330122111
510312043101122
6345020214245
746141123256
oct12224743225
93507010382
101381222037
11649733618
1232669a385
13190205660
14d1624b2d
15813d5e92
hex5253c695

1381222037 has 8 divisors (see below), whose sum is σ = 1512682080. Its totient is φ = 1253363760.

The previous prime is 1381222033. The next prime is 1381222057. The reversal of 1381222037 is 7302221831.

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 1381222037 - 22 = 1381222033 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381222033) 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, 899639 + ... + 901172.

It is an arithmetic number, because the mean of its divisors is an integer number (189085260).

Almost surely, 21381222037 is an apocalyptic number.

It is an amenable number.

1381222037 is a deficient number, since it is larger than the sum of its proper divisors (131460043).

1381222037 is a wasteful number, since it uses less digits than its factorization.

1381222037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800883.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1381222037 is about 37164.7956674055. The cubic root of 1381222037 is about 1113.6648169620.

Adding to 1381222037 its reverse (7302221831), we get a palindrome (8683443868).

The spelling of 1381222037 in words is "one billion, three hundred eighty-one million, two hundred twenty-two thousand, thirty-seven".

Divisors: 1 13 59 767 1800811 23410543 106247849 1381222037