Search a number
-
+
144990742952 = 23114327380777
BaseRepresentation
bin1000011100001000011…
…1110010100110101000
3111212020122122220000202
42013002013302212220
54333420112233302
6150335142451332
713322001660206
oct2070207624650
9455218586022
10144990742952
11565435491a0
1224125133b48
131089882c233
1470363a0076
153b88e4a202
hex21c21f29a8

144990742952 has 32 divisors (see below), whose sum is σ = 296641293120. Its totient is φ = 65889479040.

The previous prime is 144990742951. The next prime is 144990742957. The reversal of 144990742952 is 259247099441.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144990742951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190388 + ... + 571164.

It is an arithmetic number, because the mean of its divisors is an integer number (9270040410).

Almost surely, 2144990742952 is an apocalyptic number.

It is a pronic number, being equal to 380776×380777.

It is an amenable number.

144990742952 is an abundant number, since it is smaller than the sum of its proper divisors (151650550168).

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

144990742952 is a wasteful number, since it uses less digits than its factorization.

144990742952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385121 (or 385117 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 144990742952 in words is "one hundred forty-four billion, nine hundred ninety million, seven hundred forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 4327 8654 17308 34616 47597 95194 190388 380776 380777 761554 1523108 3046216 4188547 8377094 16754188 33508376 1647622079 3295244158 6590488316 13180976632 18123842869 36247685738 72495371476 144990742952