Search a number
-
+
161025060 = 22357383393
BaseRepresentation
bin10011001100100…
…00110000100100
3102012222220212010
421212100300210
5312210300220
623551154220
73663455550
oct1146206044
9365886763
10161025060
1182992569
1245b15970
132748c201
1417558860
15e20b1e0
hex9990c24

161025060 has 48 divisors (see below), whose sum is σ = 515281536. Its totient is φ = 36805632.

The previous prime is 161025043. The next prime is 161025061. The reversal of 161025060 is 60520161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (161025061) 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, 191277 + ... + 192116.

It is an arithmetic number, because the mean of its divisors is an integer number (10735032).

Almost surely, 2161025060 is an apocalyptic number.

161025060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161025060 is an abundant number, since it is smaller than the sum of its proper divisors (354256476).

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

161025060 is a wasteful number, since it uses less digits than its factorization.

161025060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383412 (or 383410 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 161025060 is about 12689.5650043648. The cubic root of 161025060 is about 544.0404066368.

The spelling of 161025060 in words is "one hundred sixty-one million, twenty-five thousand, sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 383393 766786 1150179 1533572 1916965 2300358 2683751 3833930 4600716 5367502 5750895 7667860 8051253 10735004 11501790 13418755 16102506 23003580 26837510 32205012 40256265 53675020 80512530 161025060