Search a number
-
+
19370722388 = 2243829135851
BaseRepresentation
bin10010000010100101…
…011100010001010100
31211222222102122122112
4102002211130101110
5304132401104023
612522045450152
71254011265203
oct220245342124
954888378575
1019370722388
1182402a4486
123907270958
131a991cab14
14d1a8bb23a
157858b8478
hex48295c454

19370722388 has 24 divisors (see below), whose sum is σ = 34729205280. Its totient is φ = 9448639200.

The previous prime is 19370722387. The next prime is 19370722409. The reversal of 19370722388 is 88322707391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19370722387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74663 + ... + 210513.

It is an arithmetic number, because the mean of its divisors is an integer number (1447050220).

Almost surely, 219370722388 is an apocalyptic number.

It is an amenable number.

19370722388 is a deficient number, since it is larger than the sum of its proper divisors (15358482892).

19370722388 is a wasteful number, since it uses less digits than its factorization.

19370722388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136727 (or 136725 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 19370722388 in words is "nineteen billion, three hundred seventy million, seven hundred twenty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 43 86 172 829 1658 3316 35647 71294 135851 142588 271702 543404 5841593 11683186 23366372 112620479 225240958 450481916 4842680597 9685361194 19370722388