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242023700 = 22522420237
BaseRepresentation
bin11100110110011…
…11110100010100
3121212102002002202
432123033310110
5443424224300
640003224032
75666111312
oct1633176424
9555362082
10242023700
11114685a96
1269078018
133b1abcb9
14242010b2
15163aaad5
hexe6cfd14

242023700 has 18 divisors (see below), whose sum is σ = 525191646. Its totient is φ = 96809440.

The previous prime is 242023693. The next prime is 242023703. The reversal of 242023700 is 7320242.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50865424 + 191158276 = 7132^2 + 13826^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242023703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1210019 + ... + 1210218.

Almost surely, 2242023700 is an apocalyptic number.

242023700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242023700 is an abundant number, since it is smaller than the sum of its proper divisors (283167946).

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

242023700 is a wasteful number, since it uses less digits than its factorization.

242023700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420251 (or 2420244 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 242023700 is about 15557.1109143054. The cubic root of 242023700 is about 623.1883108595.

Adding to 242023700 its reverse (7320242), we get a palindrome (249343942).

The spelling of 242023700 in words is "two hundred forty-two million, twenty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2420237 4840474 9680948 12101185 24202370 48404740 60505925 121011850 242023700