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145401400054 = 21922716856179
BaseRepresentation
bin1000011101101010011…
…0010100101011110110
3111220022021101102200001
42013122212110223312
54340240224300204
6150444012341514
713335116336221
oct2073246245366
9456267342601
10145401400054
1156734332a29
122421a77489a
13109329324c1
147074b3a5b8
153bb00164a4
hex21da994af6

145401400054 has 16 divisors (see below), whose sum is σ = 230592542400. Its totient is φ = 68570932104.

The previous prime is 145401400043. The next prime is 145401400057. The reversal of 145401400054 is 450004104541.

It is a super-2 number, since 2×1454014000542 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145401399995 and 145401400031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145401400057) 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, 8419464 + ... + 8436715.

It is an arithmetic number, because the mean of its divisors is an integer number (14412033900).

Almost surely, 2145401400054 is an apocalyptic number.

145401400054 is a deficient number, since it is larger than the sum of its proper divisors (85191142346).

145401400054 is a wasteful number, since it uses less digits than its factorization.

145401400054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16856427.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 145401400054 its reverse (450004104541), we get a palindrome (595405504595).

The spelling of 145401400054 in words is "one hundred forty-five billion, four hundred one million, four hundred thousand, fifty-four".

Divisors: 1 2 19 38 227 454 4313 8626 16856179 33712358 320267401 640534802 3826352633 7652705266 72700700027 145401400054