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145014542 = 272507271
BaseRepresentation
bin10001010010010…
…11111100001110
3101002212111112222
420221023330032
5244110431132
622220055342
73410413631
oct1051137416
9332774488
10145014542
1174947632
1240694552
132407492a
141538bc18
15cae7412
hex8a4bf0e

145014542 has 4 divisors (see below), whose sum is σ = 217521816. Its totient is φ = 72507270.

The previous prime is 145014491. The next prime is 145014547. The reversal of 145014542 is 245410541.

145014542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245410541 = 2411018301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145014547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36253634 + ... + 36253637.

It is an arithmetic number, because the mean of its divisors is an integer number (54380454).

Almost surely, 2145014542 is an apocalyptic number.

145014542 is a deficient number, since it is larger than the sum of its proper divisors (72507274).

145014542 is an equidigital number, since it uses as much as digits as its factorization.

145014542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72507273.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 145014542 is about 12042.1983873378. The cubic root of 145014542 is about 525.3763493461.

The spelling of 145014542 in words is "one hundred forty-five million, fourteen thousand, five hundred forty-two".

Divisors: 1 2 72507271 145014542