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161052400 = 2452402631
BaseRepresentation
bin10011001100101…
…11011011110000
3102020001022100201
421212113123300
5312212134100
623551524544
73663631345
oct1146273360
9366038321
10161052400
1182a01063
1245b29754
132749b7a2
14175647cc
15e21436a
hex99976f0

161052400 has 30 divisors (see below), whose sum is σ = 386929352. Its totient is φ = 64420800.

The previous prime is 161052349. The next prime is 161052401. The reversal of 161052400 is 4250161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161052401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200916 + ... + 201715.

Almost surely, 2161052400 is an apocalyptic number.

161052400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161052400 is an abundant number, since it is smaller than the sum of its proper divisors (225876952).

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

161052400 is a wasteful number, since it uses less digits than its factorization.

161052400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402649 (or 402638 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 161052400 is about 12690.6422217317. The cubic root of 161052400 is about 544.0711952668.

The spelling of 161052400 in words is "one hundred sixty-one million, fifty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 402631 805262 1610524 2013155 3221048 4026310 6442096 8052620 10065775 16105240 20131550 32210480 40263100 80526200 161052400