Search a number
-
+
78148408203150 = 23523119187990101
BaseRepresentation
bin10001110001001101011000…
…000111000101011110001110
3101020200220200221020000202120
4101301031120013011132032
540220340420000000100
6434112514430233410
722314015256410345
oct2161153007053616
9336626627200676
1078148408203150
112299a610118a1a
128921827955866
13347b49515728c
1415425902d8b5c
15907c4590c0a0
hex4713581c578e

78148408203150 has 96 divisors (see below), whose sum is σ = 201107361447936. Its totient is φ = 20061742800000.

The previous prime is 78148408203149. The next prime is 78148408203167. The reversal of 78148408203150 is 5130280484187.

It is a happy number.

It is a super-2 number, since 2×781484082031502 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78148408203093 and 78148408203102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43106901 + ... + 44883200.

It is an arithmetic number, because the mean of its divisors is an integer number (2094868348416).

Almost surely, 278148408203150 is an apocalyptic number.

78148408203150 is an abundant number, since it is smaller than the sum of its proper divisors (122958953244786).

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

78148408203150 is a wasteful number, since it uses less digits than its factorization.

78148408203150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87990338 (or 87990333 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 78148408203150 in words is "seventy-eight trillion, one hundred forty-eight billion, four hundred eight million, two hundred three thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 31 50 62 75 93 150 155 186 191 310 382 465 573 775 930 955 1146 1550 1910 2325 2865 4650 4775 5730 5921 9550 11842 14325 17763 28650 29605 35526 59210 88815 148025 177630 296050 444075 888150 87990101 175980202 263970303 439950505 527940606 879901010 1319851515 2199752525 2639703030 2727693131 4399505050 5455386262 6599257575 8183079393 13198515150 13638465655 16366158786 16806109291 27276931310 33612218582 40915396965 50418327873 68192328275 81830793930 84030546455 100836655746 136384656550 168061092910 204576984825 252091639365 409153969650 420152732275 504183278730 520989388021 840305464550 1041978776042 1260458196825 1562968164063 2520916393650 2604946940105 3125936328126 5209893880210 7814840820315 13024734700525 15629681640630 26049469401050 39074204101575 78148408203150