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144644235011031 = 3744571545393923
BaseRepresentation
bin100000111000110110011100…
…001111110010001111010111
3200222010212001102202200111110
4200320312130033302033113
5122424322343130323111
61231344351053110103
742316125661401030
oct4070663417621727
9628125042680443
10144644235011031
11420a7303883968
1214281031788333
136292b7b732672
1427a0b656c9a87
1511ac7dd9e45a6
hex838d9c3f23d7

144644235011031 has 16 divisors (see below), whose sum is σ = 220459715622144. Its totient is φ = 82635303797184.

The previous prime is 144644235010967. The next prime is 144644235011141. The reversal of 144644235011031 is 130110532446441.

It is not a de Polignac number, because 144644235011031 - 26 = 144644235010967 is a prime.

It is a super-2 number, since 2×1446442350110312 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144644235061031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772603365 + ... + 772790558.

It is an arithmetic number, because the mean of its divisors is an integer number (13778732226384).

Almost surely, 2144644235011031 is an apocalyptic number.

144644235011031 is a deficient number, since it is larger than the sum of its proper divisors (75815480611113).

144644235011031 is a wasteful number, since it uses less digits than its factorization.

144644235011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545398390.

The product of its (nonzero) digits is 138240, while the sum is 39.

Adding to 144644235011031 its reverse (130110532446441), we get a palindrome (274754767457472).

The spelling of 144644235011031 in words is "one hundred forty-four trillion, six hundred forty-four billion, two hundred thirty-five million, eleven thousand, thirty-one".

Divisors: 1 3 7 21 4457 13371 31199 93597 1545393923 4636181769 10817757461 32453272383 6887820714811 20663462144433 48214745003677 144644235011031