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1203240380 = 22597620227
BaseRepresentation
bin100011110110111…
…1111110110111100
310002212002221111112
41013231333312330
54431012143010
6315221341152
741550242306
oct10755776674
93085087445
101203240380
1156821a341
12296b677b8
1316238a374
14b5b34976
157097aa05
hex47b7fdbc

1203240380 has 24 divisors (see below), whose sum is σ = 2552858448. Its totient is φ = 476333568.

The previous prime is 1203240323. The next prime is 1203240383. The reversal of 1203240380 is 830423021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203240383) 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, 308174 + ... + 312053.

It is an arithmetic number, because the mean of its divisors is an integer number (106369102).

Almost surely, 21203240380 is an apocalyptic number.

1203240380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203240380 is an abundant number, since it is smaller than the sum of its proper divisors (1349618068).

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

1203240380 is a wasteful number, since it uses less digits than its factorization.

1203240380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620333 (or 620331 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1203240380 is about 34687.7554765367. The cubic root of 1203240380 is about 1063.6142143983.

The spelling of 1203240380 in words is "one billion, two hundred three million, two hundred forty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 620227 1240454 2480908 3101135 6202270 12404540 60162019 120324038 240648076 300810095 601620190 1203240380