Search a number
-
+
207023040 = 2634572163
BaseRepresentation
bin11000101011011…
…10101111000000
3112102112212020000
430111232233000
5410444214130
632313120000
75062444500
oct1425565700
9472485200
10207023040
11a694a524
12593b9000
1333b75b53
141d6cda00
1513295260
hexc56ebc0

207023040 has 420 divisors, whose sum is σ = 861904296. Its totient is φ = 47029248.

The previous prime is 207023039. The next prime is 207023041. The reversal of 207023040 is 40320702.

It is a happy number.

207023040 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (207023039) and next prime (207023041).

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207023041) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1269999 + ... + 1270161.

Almost surely, 2207023040 is an apocalyptic number.

207023040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430952148).

207023040 is an abundant number, since it is smaller than the sum of its proper divisors (654881256).

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

207023040 is a wasteful number, since it uses less digits than its factorization.

207023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 207023040 is about 14388.2952430092. The cubic root of 207023040 is about 591.5701164503.

Adding to 207023040 its reverse (40320702), we get a palindrome (247343742).

The spelling of 207023040 in words is "two hundred seven million, twenty-three thousand, forty".