Search a number
-
+
142534580 = 22519375091
BaseRepresentation
bin10000111111011…
…10011110110100
3100221012111200112
420133232132310
5242442101310
622051002152
73350344466
oct1037563664
9327174615
10142534580
1173503381
123b899358
13236b6bb6
1414d04136
15c7a7705
hex87ee7b4

142534580 has 24 divisors (see below), whose sum is σ = 315077280. Its totient is φ = 54012960.

The previous prime is 142534577. The next prime is 142534583. The reversal of 142534580 is 85435241.

It is an interprime number because it is at equal distance from previous prime (142534577) and next prime (142534583).

It is a super-2 number, since 2×1425345802 = 40632212991552800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142534583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187166 + ... + 187925.

It is an arithmetic number, because the mean of its divisors is an integer number (13128220).

Almost surely, 2142534580 is an apocalyptic number.

142534580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142534580 is an abundant number, since it is smaller than the sum of its proper divisors (172542700).

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

142534580 is a wasteful number, since it uses less digits than its factorization.

142534580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375119 (or 375117 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 142534580 is about 11938.7846952694. The cubic root of 142534580 is about 522.3642100373.

The spelling of 142534580 in words is "one hundred forty-two million, five hundred thirty-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 375091 750182 1500364 1875455 3750910 7126729 7501820 14253458 28506916 35633645 71267290 142534580