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243941942 = 21771139727
BaseRepresentation
bin11101000101001…
…00001000110110
3122000000112102202
432202210020312
5444422120232
640112304502
76021320666
oct1642441066
9560015382
10243941942
11115776212
1269842132
133b70115a
14245801a6
1516639162
hexe8a4236

243941942 has 32 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 112210560.

The previous prime is 243941941. The next prime is 243941977. The reversal of 243941942 is 249149342.

It is a junction number, because it is equal to n+sod(n) for n = 243941896 and 243941905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243941941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335183 + ... + 335909.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2243941942 is an apocalyptic number.

243941942 is a deficient number, since it is larger than the sum of its proper divisors (152323018).

243941942 is a wasteful number, since it uses less digits than its factorization.

243941942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its digits is 62208, while the sum is 38.

The square root of 243941942 is about 15618.6408499587. The cubic root of 243941942 is about 624.8304111609.

The spelling of 243941942 in words is "two hundred forty-three million, nine hundred forty-one thousand, nine hundred forty-two".

Divisors: 1 2 17 34 71 139 142 278 727 1207 1454 2363 2414 4726 9869 12359 19738 24718 51617 101053 103234 167773 202106 335546 877489 1717901 1754978 3435802 7174763 14349526 121970971 243941942