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89930040 = 23351939443
BaseRepresentation
bin1010101110000…
…11100100111000
320021012220211020
411113003210320
5141010230130
612531302440
72141251464
oct527034470
9207186736
1089930040
1146843852
122614aa20
1315829155
14bd2d4a4
157d65e10
hex55c3938

89930040 has 64 divisors (see below), whose sum is σ = 283996800. Its totient is φ = 22718592.

The previous prime is 89930011. The next prime is 89930041. The reversal of 89930040 is 4003998.

It is a junction number, because it is equal to n+sod(n) for n = 89929983 and 89930010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89930041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17442 + ... + 22001.

It is an arithmetic number, because the mean of its divisors is an integer number (4437450).

Almost surely, 289930040 is an apocalyptic number.

It is an amenable number.

89930040 is an abundant number, since it is smaller than the sum of its proper divisors (194066760).

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

89930040 is a wasteful number, since it uses less digits than its factorization.

89930040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39476 (or 39472 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 89930040 is about 9483.1450479258. The cubic root of 89930040 is about 448.0243263789.

The spelling of 89930040 in words is "eighty-nine million, nine hundred thirty thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 76 95 114 120 152 190 228 285 380 456 570 760 1140 2280 39443 78886 118329 157772 197215 236658 315544 394430 473316 591645 749417 788860 946632 1183290 1498834 1577720 2248251 2366580 2997668 3747085 4496502 4733160 5995336 7494170 8993004 11241255 14988340 17986008 22482510 29976680 44965020 89930040