Search a number
-
+
7444786062945 = 3571125337329641
BaseRepresentation
bin110110001010101111111…
…0101000010011001100001
3222100201021221102001222010
41230111133311002121201
51433433410213003240
623500030522303133
71365603511264260
oct154253765023141
928321257361863
107444786062945
112410352713700
12a02a23957aa9
1342006a750c1a
141ba4884985d7
15cd9c8d77280
hex6c55fd42661

7444786062945 has 192 divisors, whose sum is σ = 15287122109952. Its totient is φ = 3027320524800.

The previous prime is 7444786062941. The next prime is 7444786062979. The reversal of 7444786062945 is 5492606874447.

It is not a de Polignac number, because 7444786062945 - 22 = 7444786062941 is a prime.

It is a super-2 number, since 2×74447860629452 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7444786062941) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 251150325 + ... + 251179965.

It is an arithmetic number, because the mean of its divisors is an integer number (79620427656).

Almost surely, 27444786062945 is an apocalyptic number.

It is an amenable number.

7444786062945 is an abundant number, since it is smaller than the sum of its proper divisors (7842336047007).

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

7444786062945 is a wasteful number, since it uses less digits than its factorization.

7444786062945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30104 (or 30093 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 66.

The spelling of 7444786062945 in words is "seven trillion, four hundred forty-four billion, seven hundred eighty-six million, sixty-two thousand, nine hundred forty-five".