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194481942 = 23411097253
BaseRepresentation
bin10111001011110…
…00111100010110
3111112221201001220
423211320330112
5344241410232
631144231210
74551032514
oct1345707426
9445851056
10194481942
119a864186
125516b506
13313a4795
141bb874b4
151211942c
hexb978f16

194481942 has 32 divisors (see below), whose sum is σ = 402161760. Its totient is φ = 62657280.

The previous prime is 194481907. The next prime is 194481943. The reversal of 194481942 is 249184491.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 194481894 and 194481903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194481943) 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, 23188 + ... + 30440.

It is an arithmetic number, because the mean of its divisors is an integer number (12567555).

Almost surely, 2194481942 is an apocalyptic number.

194481942 is an abundant number, since it is smaller than the sum of its proper divisors (207679818).

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

194481942 is a wasteful number, since it uses less digits than its factorization.

194481942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408.

The product of its digits is 82944, while the sum is 42.

The square root of 194481942 is about 13945.6782552875. The cubic root of 194481942 is about 579.3750124690.

The spelling of 194481942 in words is "one hundred ninety-four million, four hundred eighty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 41 82 109 123 218 246 327 654 4469 7253 8938 13407 14506 21759 26814 43518 297373 594746 790577 892119 1581154 1784238 2371731 4743462 32413657 64827314 97240971 194481942