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242633838 = 23193171967
BaseRepresentation
bin11100111011001…
…00110001101110
3121220120002001110
432131210301232
5444103240323
640024252450
76004232166
oct1635446156
9556502043
10242633838
11114a62437
1269311126
133b363925
142431d5a6
151647b793
hexe764c6e

242633838 has 64 divisors (see below), whose sum is σ = 535265280. Its totient is φ = 73029600.

The previous prime is 242633837. The next prime is 242633849. The reversal of 242633838 is 838336242.

It is a super-2 number, since 2×2426338382 = 117742358685220488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242633796 and 242633805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242633837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250431 + ... + 251397.

It is an arithmetic number, because the mean of its divisors is an integer number (8363520).

Almost surely, 2242633838 is an apocalyptic number.

242633838 is an abundant number, since it is smaller than the sum of its proper divisors (292631442).

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

242633838 is a wasteful number, since it uses less digits than its factorization.

242633838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its digits is 165888, while the sum is 39.

The square root of 242633838 is about 15576.7081888312. The cubic root of 242633838 is about 623.7115541034.

The spelling of 242633838 in words is "two hundred forty-two million, six hundred thirty-three thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 19 31 38 57 62 71 93 114 142 186 213 426 589 967 1178 1349 1767 1934 2201 2698 2901 3534 4047 4402 5802 6603 8094 13206 18373 29977 36746 41819 55119 59954 68657 83638 89931 110238 125457 137314 179862 205971 250914 411942 569563 1139126 1304483 1708689 2128367 2608966 3417378 3913449 4256734 6385101 7826898 12770202 40438973 80877946 121316919 242633838