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145797545 = 5196912221
BaseRepresentation
bin10001011000010…
…11000110101001
3101011100021122002
420230023012221
5244311010140
622244540345
73420154505
oct1054130651
9334307562
10145797545
1175331943
12409b16b5
132428a14a
1415513305
15cbee415
hex8b0b1a9

145797545 has 16 divisors (see below), whose sum is σ = 184514880. Its totient is φ = 110289600.

The previous prime is 145797539. The next prime is 145797611. The reversal of 145797545 is 545797541.

It is not a de Polignac number, because 145797545 - 214 = 145781161 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145797545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64535 + ... + 66755.

It is an arithmetic number, because the mean of its divisors is an integer number (11532180).

Almost surely, 2145797545 is an apocalyptic number.

It is an amenable number.

145797545 is a deficient number, since it is larger than the sum of its proper divisors (38717335).

145797545 is a wasteful number, since it uses less digits than its factorization.

145797545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its digits is 882000, while the sum is 47.

The square root of 145797545 is about 12074.6654197953. The cubic root of 145797545 is about 526.3202387615.

The spelling of 145797545 in words is "one hundred forty-five million, seven hundred ninety-seven thousand, five hundred forty-five".

Divisors: 1 5 19 95 691 2221 3455 11105 13129 42199 65645 210995 1534711 7673555 29159509 145797545