Search a number
-
+
3072950640 = 243253137612
BaseRepresentation
bin1011011100101001…
…1000000101110000
321221011022001210200
42313022120011300
522243133410030
61224531555200
7136102435524
oct26712300560
97834261720
103072950640
111337667331
1271915bb00
1339c8470b6
14212195d84
1512eba3d60
hexb7298170

3072950640 has 360 divisors, whose sum is σ = 11123109504. Its totient is φ = 758937600.

The previous prime is 3072950633. The next prime is 3072950641. The reversal of 3072950640 is 460592703.

3072950640 is a `hidden beast` number, since 3 + 0 + 7 + 2 + 9 + 5 + 0 + 640 = 666.

3072950640 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3072950595 and 3072950604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072950641) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50376210 + ... + 50376270.

Almost surely, 23072950640 is an apocalyptic number.

3072950640 is a gapful number since it is divisible by the number (30) 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 3072950640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5561554752).

3072950640 is an abundant number, since it is smaller than the sum of its proper divisors (8050158864).

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

3072950640 is a wasteful number, since it uses less digits than its factorization.

3072950640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 3072950640 is about 55434.2009954144. The cubic root of 3072950640 is about 1453.8464091064.

The spelling of 3072950640 in words is "three billion, seventy-two million, nine hundred fifty thousand, six hundred forty".