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20153035 = 571015701
BaseRepresentation
bin100110011100…
…0001011001011
31101220212202201
41030320023023
520124344120
61555541031
7333204130
oct114701313
941825681
1020153035
1110415301
1268ba777
134237c96
142968587
151b8140a
hex13382cb

20153035 has 16 divisors (see below), whose sum is σ = 27916992. Its totient is φ = 13680000.

The previous prime is 20153033. The next prime is 20153047. The reversal of 20153035 is 53035102.

It is not a de Polignac number, because 20153035 - 21 = 20153033 is a prime.

It is a super-2 number, since 2×201530352 = 812289639422450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153033) 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, 685 + ... + 6385.

It is an arithmetic number, because the mean of its divisors is an integer number (1744812).

Almost surely, 220153035 is an apocalyptic number.

20153035 is a deficient number, since it is larger than the sum of its proper divisors (7763957).

20153035 is a wasteful number, since it uses less digits than its factorization.

20153035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5814.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 20153035 is about 4489.2131827304. The cubic root of 20153035 is about 272.1323381036.

Adding to 20153035 its reverse (53035102), we get a palindrome (73188137).

It can be divided in two parts, 2015 and 3035, that added together give a triangular number (5050 = T100).

The spelling of 20153035 in words is "twenty million, one hundred fifty-three thousand, thirty-five".

Divisors: 1 5 7 35 101 505 707 3535 5701 28505 39907 199535 575801 2879005 4030607 20153035